diff --git a/res/i18n/ts/cs.ts b/res/i18n/ts/cs.ts
index 7c1be79f55843d60793867a2012ea27a36657b39..302b1eb2b5c20e76c4f67af971c75674683d8745 100644
--- a/res/i18n/ts/cs.ts
+++ b/res/i18n/ts/cs.ts
@@ -575,77 +575,77 @@ p, li { white-space: pre-wrap; }
 <context>
     <name>ContextMenu</name>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="319"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="330"/>
         <source>Warning</source>
         <translation>Attention</translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="43"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="44"/>
         <source>Informations</source>
         <translation type="unfinished">Informations</translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="53"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="54"/>
         <source>Certify identity</source>
         <translation type="unfinished">Certifier cette identité</translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="62"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="63"/>
         <source>View in Web of Trust</source>
         <translation type="unfinished">Voir dans la Toile de Confiance</translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="235"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="246"/>
         <source>Send money</source>
         <translation type="unfinished">Envoyer de la monnaie</translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="212"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="223"/>
         <source>Copy pubkey to clipboard</source>
         <translation type="unfinished">Copier la clé publique</translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="221"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="232"/>
         <source>Copy pubkey to clipboard (with CRC)</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="97"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="98"/>
         <source>Copy self-certification document to clipboard</source>
         <translation type="unfinished">Copier le document d&apos;auto-certification</translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="114"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="115"/>
         <source>Transfer</source>
         <translation type="unfinished">Transfert</translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="118"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="119"/>
         <source>Send again</source>
         <translation type="unfinished">Renvoyer</translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="127"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="128"/>
         <source>Cancel</source>
         <translation type="unfinished">Annuler</translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="157"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="166"/>
         <source>Copy raw transaction to clipboard</source>
         <translation type="unfinished">Copier la transaction (format brut)</translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="169"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="178"/>
         <source>Copy transaction block to clipboard</source>
         <translation type="unfinished">Copier le bloc de la transaction</translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="199"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="210"/>
         <source>Send as source</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="188"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="197"/>
         <source>Dividend</source>
         <translation type="unfinished"></translation>
     </message>
@@ -1195,7 +1195,7 @@ p, li { white-space: pre-wrap; }
 <context>
     <name>NetworkController</name>
     <message>
-        <location filename="../../../src/sakia/gui/navigation/network/controller.py" line="55"/>
+        <location filename="../../../src/sakia/gui/navigation/network/controller.py" line="57"/>
         <source>Open in browser</source>
         <translation type="unfinished">Ouvrir dans le navigateur</translation>
     </message>
@@ -1330,6 +1330,42 @@ p, li { white-space: pre-wrap; }
         <translation type="unfinished"></translation>
     </message>
 </context>
+<context>
+    <name>PercentOfAverage</name>
+    <message>
+        <location filename="../../../src/sakia/money/percent_of_average.py" line="12"/>
+        <source>PoA</source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <location filename="../../../src/sakia/money/percent_of_average.py" line="11"/>
+        <source>{0} {1}{2}</source>
+        <translation type="unfinished">{0} {1}{2}</translation>
+    </message>
+    <message>
+        <location filename="../../../src/sakia/money/percent_of_average.py" line="13"/>
+        <source>PoA = (Q / ( M(t-1) / N)) / 100
+                                        &lt;br &gt;
+                                        &lt;table&gt;
+                                        &lt;tr&gt;&lt;td&gt;PoA&lt;/td&gt;&lt;td&gt;Percent of Average value&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;Q&lt;/td&gt;&lt;td&gt;Quantitative value&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;M&lt;/td&gt;&lt;td&gt;Monetary mass&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;N&lt;/td&gt;&lt;td&gt;Members count&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;/table&gt;</source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <location filename="../../../src/sakia/money/percent_of_average.py" line="24"/>
+        <source>Another relative referential of the money.&lt;br /&gt;
+                                          Percent of Average value PoA is calculated by dividing the quantitative value Q by the average&lt;br /&gt;
+                                           then multiply by one hundred.&lt;br /&gt;
+                                          This referential is relative and can be used to display prices and accounts, when UD growth is too slow.&lt;br /&gt;
+                                          No money creation or destruction is apparent here and every account tend to&lt;br /&gt;
+                                           the 100%.
+                                          </source>
+        <translation type="unfinished"></translation>
+    </message>
+</context>
 <context>
     <name>PluginDialog</name>
     <message>
@@ -1517,6 +1553,16 @@ p, li { white-space: pre-wrap; }
         <source>units</source>
         <translation type="unfinished"></translation>
     </message>
+    <message>
+        <location filename="../../../src/sakia/money/quantitative.py" line="11"/>
+        <source>Q = Q
+                                        &lt;br &gt;
+                                        &lt;table&gt;
+                                        &lt;tr&gt;&lt;td&gt;Q&lt;/td&gt;&lt;td&gt;Quantitative value&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;/table&gt;
+                                      </source>
+        <translation type="unfinished"></translation>
+    </message>
 </context>
 <context>
     <name>QuantitativeZSum</name>
@@ -1535,6 +1581,28 @@ p, li { white-space: pre-wrap; }
         <source>Q0</source>
         <translation type="unfinished"></translation>
     </message>
+    <message>
+        <location filename="../../../src/sakia/money/quant_zerosum.py" line="24"/>
+        <source>Quantitative at zero sum is used to display the difference between&lt;br /&gt;
+                                            the quantitative value and the average quantitative value.&lt;br /&gt;
+                                            If it is positive, the value is above the average value, and if it is negative,&lt;br /&gt;
+                                            the value is under the average value.&lt;br /&gt;
+                                           </source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <location filename="../../../src/sakia/money/quant_zerosum.py" line="12"/>
+        <source>Q0 = Q - ( M(t-1) / N )
+                                        &lt;br &gt;
+                                        &lt;table&gt;
+                                        &lt;tr&gt;&lt;td&gt;Q0&lt;/td&gt;&lt;td&gt;Quantitative value at zero sum&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;Q&lt;/td&gt;&lt;td&gt;Quantitative value&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;M&lt;/td&gt;&lt;td&gt;Monetary mass&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;N&lt;/td&gt;&lt;td&gt;Members count&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;t-1&lt;/td&gt;&lt;td&gt;Previous UD time&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;/table&gt;</source>
+        <translation type="unfinished"></translation>
+    </message>
 </context>
 <context>
     <name>Relative</name>
@@ -1548,6 +1616,29 @@ p, li { white-space: pre-wrap; }
         <source>{0} {1}{2}</source>
         <translation type="unfinished">{0} {1}{2}</translation>
     </message>
+    <message>
+        <location filename="../../../src/sakia/money/relative.py" line="12"/>
+        <source>R = Q / UD(t)
+                                        &lt;br &gt;
+                                        &lt;table&gt;
+                                        &lt;tr&gt;&lt;td&gt;R&lt;/td&gt;&lt;td&gt;Relative value&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;Q&lt;/td&gt;&lt;td&gt;Quantitative value&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;UD&lt;/td&gt;&lt;td&gt;Universal Dividend&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;t&lt;/td&gt;&lt;td&gt;Last UD time&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;/table&gt;</source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <location filename="../../../src/sakia/money/relative.py" line="23"/>
+        <source>Relative referential of the money.&lt;br /&gt;
+                                          Relative value R is calculated by dividing the quantitative value Q by the last&lt;br /&gt;
+                                           Universal Dividend UD.&lt;br /&gt;
+                                          This referential is the most practical one to display prices and accounts.&lt;br /&gt;
+                                          No money creation or destruction is apparent here and every account tend to&lt;br /&gt;
+                                           the average.
+                                          </source>
+        <translation type="unfinished"></translation>
+    </message>
 </context>
 <context>
     <name>RelativeZSum</name>
@@ -1566,6 +1657,29 @@ p, li { white-space: pre-wrap; }
         <source>R0 UD</source>
         <translation type="unfinished"></translation>
     </message>
+    <message>
+        <location filename="../../../src/sakia/money/relative_zerosum.py" line="25"/>
+        <source>Relative at zero sum is used to display the difference between&lt;br /&gt;
+                                            the relative value and the average relative value.&lt;br /&gt;
+                                            If it is positive, the value is above the average value, and if it is negative,&lt;br /&gt;
+                                            the value is under the average value.&lt;br /&gt;
+                                           </source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <location filename="../../../src/sakia/money/relative_zerosum.py" line="12"/>
+        <source>R0 = (Q / UD(t)) - (( M(t-1) / N ) / UD(t))
+                                        &lt;br &gt;
+                                        &lt;table&gt;
+                                        &lt;tr&gt;&lt;td&gt;R0&lt;/td&gt;&lt;td&gt;Relative value at zero sum&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;R&lt;/td&gt;&lt;td&gt;Relative value&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;M&lt;/td&gt;&lt;td&gt;Monetary mass&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;N&lt;/td&gt;&lt;td&gt;Members count&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;t&lt;/td&gt;&lt;td&gt;Last UD time&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;t-1&lt;/td&gt;&lt;td&gt;Penultimate UD time&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;/table&gt;</source>
+        <translation type="unfinished"></translation>
+    </message>
 </context>
 <context>
     <name>RevocationDialog</name>
@@ -2015,11 +2129,6 @@ please wait...</source>
         <source>Check source condition</source>
         <translation type="unfinished"></translation>
     </message>
-    <message>
-        <location filename="../../../src/sakia/gui/sub/transfer/controller.py" line="392"/>
-        <source>&lt;li&gt;Error in {}: &lt;span style=&quot;color: red&quot;&gt;{} {}&lt;/span&gt;&lt;/li&gt;</source>
-        <translation type="unfinished"></translation>
-    </message>
 </context>
 <context>
     <name>TransferMoneyWidget</name>
diff --git a/res/i18n/ts/de.ts b/res/i18n/ts/de.ts
index e44f1f1f3025f51c542fca9e519f07d29da015eb..2ddb56c0579e58566dd61c56525fe2d17a57b1e0 100644
--- a/res/i18n/ts/de.ts
+++ b/res/i18n/ts/de.ts
@@ -575,77 +575,77 @@ p, li { white-space: pre-wrap; }
 <context>
     <name>ContextMenu</name>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="319"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="330"/>
         <source>Warning</source>
         <translation type="unfinished">Warnung</translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="43"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="44"/>
         <source>Informations</source>
         <translation type="unfinished">Informationen</translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="53"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="54"/>
         <source>Certify identity</source>
         <translation type="unfinished">Identität zertifizieren</translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="62"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="63"/>
         <source>View in Web of Trust</source>
         <translation type="unfinished">Im Web of Trust anschauen</translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="235"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="246"/>
         <source>Send money</source>
         <translation type="unfinished">Geld schicken</translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="212"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="223"/>
         <source>Copy pubkey to clipboard</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="221"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="232"/>
         <source>Copy pubkey to clipboard (with CRC)</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="97"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="98"/>
         <source>Copy self-certification document to clipboard</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="114"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="115"/>
         <source>Transfer</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="118"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="119"/>
         <source>Send again</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="127"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="128"/>
         <source>Cancel</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="157"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="166"/>
         <source>Copy raw transaction to clipboard</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="169"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="178"/>
         <source>Copy transaction block to clipboard</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="199"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="210"/>
         <source>Send as source</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="188"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="197"/>
         <source>Dividend</source>
         <translation type="unfinished"></translation>
     </message>
@@ -1195,7 +1195,7 @@ p, li { white-space: pre-wrap; }
 <context>
     <name>NetworkController</name>
     <message>
-        <location filename="../../../src/sakia/gui/navigation/network/controller.py" line="55"/>
+        <location filename="../../../src/sakia/gui/navigation/network/controller.py" line="57"/>
         <source>Open in browser</source>
         <translation type="unfinished">Im Browser öffnen</translation>
     </message>
@@ -1330,6 +1330,42 @@ p, li { white-space: pre-wrap; }
         <translation type="unfinished"></translation>
     </message>
 </context>
+<context>
+    <name>PercentOfAverage</name>
+    <message>
+        <location filename="../../../src/sakia/money/percent_of_average.py" line="12"/>
+        <source>PoA</source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <location filename="../../../src/sakia/money/percent_of_average.py" line="11"/>
+        <source>{0} {1}{2}</source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <location filename="../../../src/sakia/money/percent_of_average.py" line="13"/>
+        <source>PoA = (Q / ( M(t-1) / N)) / 100
+                                        &lt;br &gt;
+                                        &lt;table&gt;
+                                        &lt;tr&gt;&lt;td&gt;PoA&lt;/td&gt;&lt;td&gt;Percent of Average value&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;Q&lt;/td&gt;&lt;td&gt;Quantitative value&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;M&lt;/td&gt;&lt;td&gt;Monetary mass&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;N&lt;/td&gt;&lt;td&gt;Members count&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;/table&gt;</source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <location filename="../../../src/sakia/money/percent_of_average.py" line="24"/>
+        <source>Another relative referential of the money.&lt;br /&gt;
+                                          Percent of Average value PoA is calculated by dividing the quantitative value Q by the average&lt;br /&gt;
+                                           then multiply by one hundred.&lt;br /&gt;
+                                          This referential is relative and can be used to display prices and accounts, when UD growth is too slow.&lt;br /&gt;
+                                          No money creation or destruction is apparent here and every account tend to&lt;br /&gt;
+                                           the 100%.
+                                          </source>
+        <translation type="unfinished"></translation>
+    </message>
+</context>
 <context>
     <name>PluginDialog</name>
     <message>
@@ -1517,6 +1553,16 @@ p, li { white-space: pre-wrap; }
         <source>units</source>
         <translation type="unfinished"></translation>
     </message>
+    <message>
+        <location filename="../../../src/sakia/money/quantitative.py" line="11"/>
+        <source>Q = Q
+                                        &lt;br &gt;
+                                        &lt;table&gt;
+                                        &lt;tr&gt;&lt;td&gt;Q&lt;/td&gt;&lt;td&gt;Quantitative value&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;/table&gt;
+                                      </source>
+        <translation type="unfinished"></translation>
+    </message>
 </context>
 <context>
     <name>QuantitativeZSum</name>
@@ -1535,6 +1581,28 @@ p, li { white-space: pre-wrap; }
         <source>Q0</source>
         <translation type="unfinished"></translation>
     </message>
+    <message>
+        <location filename="../../../src/sakia/money/quant_zerosum.py" line="24"/>
+        <source>Quantitative at zero sum is used to display the difference between&lt;br /&gt;
+                                            the quantitative value and the average quantitative value.&lt;br /&gt;
+                                            If it is positive, the value is above the average value, and if it is negative,&lt;br /&gt;
+                                            the value is under the average value.&lt;br /&gt;
+                                           </source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <location filename="../../../src/sakia/money/quant_zerosum.py" line="12"/>
+        <source>Q0 = Q - ( M(t-1) / N )
+                                        &lt;br &gt;
+                                        &lt;table&gt;
+                                        &lt;tr&gt;&lt;td&gt;Q0&lt;/td&gt;&lt;td&gt;Quantitative value at zero sum&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;Q&lt;/td&gt;&lt;td&gt;Quantitative value&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;M&lt;/td&gt;&lt;td&gt;Monetary mass&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;N&lt;/td&gt;&lt;td&gt;Members count&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;t-1&lt;/td&gt;&lt;td&gt;Previous UD time&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;/table&gt;</source>
+        <translation type="unfinished"></translation>
+    </message>
 </context>
 <context>
     <name>Relative</name>
@@ -1548,6 +1616,29 @@ p, li { white-space: pre-wrap; }
         <source>{0} {1}{2}</source>
         <translation type="unfinished"></translation>
     </message>
+    <message>
+        <location filename="../../../src/sakia/money/relative.py" line="12"/>
+        <source>R = Q / UD(t)
+                                        &lt;br &gt;
+                                        &lt;table&gt;
+                                        &lt;tr&gt;&lt;td&gt;R&lt;/td&gt;&lt;td&gt;Relative value&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;Q&lt;/td&gt;&lt;td&gt;Quantitative value&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;UD&lt;/td&gt;&lt;td&gt;Universal Dividend&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;t&lt;/td&gt;&lt;td&gt;Last UD time&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;/table&gt;</source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <location filename="../../../src/sakia/money/relative.py" line="23"/>
+        <source>Relative referential of the money.&lt;br /&gt;
+                                          Relative value R is calculated by dividing the quantitative value Q by the last&lt;br /&gt;
+                                           Universal Dividend UD.&lt;br /&gt;
+                                          This referential is the most practical one to display prices and accounts.&lt;br /&gt;
+                                          No money creation or destruction is apparent here and every account tend to&lt;br /&gt;
+                                           the average.
+                                          </source>
+        <translation type="unfinished"></translation>
+    </message>
 </context>
 <context>
     <name>RelativeZSum</name>
@@ -1566,6 +1657,29 @@ p, li { white-space: pre-wrap; }
         <source>R0 UD</source>
         <translation type="unfinished"></translation>
     </message>
+    <message>
+        <location filename="../../../src/sakia/money/relative_zerosum.py" line="25"/>
+        <source>Relative at zero sum is used to display the difference between&lt;br /&gt;
+                                            the relative value and the average relative value.&lt;br /&gt;
+                                            If it is positive, the value is above the average value, and if it is negative,&lt;br /&gt;
+                                            the value is under the average value.&lt;br /&gt;
+                                           </source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <location filename="../../../src/sakia/money/relative_zerosum.py" line="12"/>
+        <source>R0 = (Q / UD(t)) - (( M(t-1) / N ) / UD(t))
+                                        &lt;br &gt;
+                                        &lt;table&gt;
+                                        &lt;tr&gt;&lt;td&gt;R0&lt;/td&gt;&lt;td&gt;Relative value at zero sum&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;R&lt;/td&gt;&lt;td&gt;Relative value&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;M&lt;/td&gt;&lt;td&gt;Monetary mass&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;N&lt;/td&gt;&lt;td&gt;Members count&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;t&lt;/td&gt;&lt;td&gt;Last UD time&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;t-1&lt;/td&gt;&lt;td&gt;Penultimate UD time&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;/table&gt;</source>
+        <translation type="unfinished"></translation>
+    </message>
 </context>
 <context>
     <name>RevocationDialog</name>
@@ -2015,11 +2129,6 @@ please wait...</source>
         <source>Check source condition</source>
         <translation type="unfinished"></translation>
     </message>
-    <message>
-        <location filename="../../../src/sakia/gui/sub/transfer/controller.py" line="392"/>
-        <source>&lt;li&gt;Error in {}: &lt;span style=&quot;color: red&quot;&gt;{} {}&lt;/span&gt;&lt;/li&gt;</source>
-        <translation type="unfinished"></translation>
-    </message>
 </context>
 <context>
     <name>TransferMoneyWidget</name>
diff --git a/res/i18n/ts/es.ts b/res/i18n/ts/es.ts
index 0d9ffc290c85bca081d06f37b5cdcbc3b596e629..5effc3bb783b7bcee64b9ad4aeae724405bb06f2 100644
--- a/res/i18n/ts/es.ts
+++ b/res/i18n/ts/es.ts
@@ -575,77 +575,77 @@ p, li { white-space: pre-wrap; }
 <context>
     <name>ContextMenu</name>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="319"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="330"/>
         <source>Warning</source>
         <translation type="unfinished">Advertencia</translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="43"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="44"/>
         <source>Informations</source>
         <translation type="unfinished">Informaciones</translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="53"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="54"/>
         <source>Certify identity</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="62"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="63"/>
         <source>View in Web of Trust</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="235"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="246"/>
         <source>Send money</source>
         <translation type="unfinished">Enviar dinero</translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="212"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="223"/>
         <source>Copy pubkey to clipboard</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="221"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="232"/>
         <source>Copy pubkey to clipboard (with CRC)</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="97"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="98"/>
         <source>Copy self-certification document to clipboard</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="114"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="115"/>
         <source>Transfer</source>
         <translation type="unfinished">Transferir</translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="118"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="119"/>
         <source>Send again</source>
         <translation type="unfinished">Enviar de nuevo</translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="127"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="128"/>
         <source>Cancel</source>
         <translation type="unfinished">Cancelar</translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="157"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="166"/>
         <source>Copy raw transaction to clipboard</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="169"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="178"/>
         <source>Copy transaction block to clipboard</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="199"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="210"/>
         <source>Send as source</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="188"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="197"/>
         <source>Dividend</source>
         <translation type="unfinished"></translation>
     </message>
@@ -1195,7 +1195,7 @@ p, li { white-space: pre-wrap; }
 <context>
     <name>NetworkController</name>
     <message>
-        <location filename="../../../src/sakia/gui/navigation/network/controller.py" line="55"/>
+        <location filename="../../../src/sakia/gui/navigation/network/controller.py" line="57"/>
         <source>Open in browser</source>
         <translation type="unfinished">Abrir en un explorador</translation>
     </message>
@@ -1330,6 +1330,42 @@ p, li { white-space: pre-wrap; }
         <translation type="unfinished"></translation>
     </message>
 </context>
+<context>
+    <name>PercentOfAverage</name>
+    <message>
+        <location filename="../../../src/sakia/money/percent_of_average.py" line="12"/>
+        <source>PoA</source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <location filename="../../../src/sakia/money/percent_of_average.py" line="11"/>
+        <source>{0} {1}{2}</source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <location filename="../../../src/sakia/money/percent_of_average.py" line="13"/>
+        <source>PoA = (Q / ( M(t-1) / N)) / 100
+                                        &lt;br &gt;
+                                        &lt;table&gt;
+                                        &lt;tr&gt;&lt;td&gt;PoA&lt;/td&gt;&lt;td&gt;Percent of Average value&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;Q&lt;/td&gt;&lt;td&gt;Quantitative value&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;M&lt;/td&gt;&lt;td&gt;Monetary mass&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;N&lt;/td&gt;&lt;td&gt;Members count&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;/table&gt;</source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <location filename="../../../src/sakia/money/percent_of_average.py" line="24"/>
+        <source>Another relative referential of the money.&lt;br /&gt;
+                                          Percent of Average value PoA is calculated by dividing the quantitative value Q by the average&lt;br /&gt;
+                                           then multiply by one hundred.&lt;br /&gt;
+                                          This referential is relative and can be used to display prices and accounts, when UD growth is too slow.&lt;br /&gt;
+                                          No money creation or destruction is apparent here and every account tend to&lt;br /&gt;
+                                           the 100%.
+                                          </source>
+        <translation type="unfinished"></translation>
+    </message>
+</context>
 <context>
     <name>PluginDialog</name>
     <message>
@@ -1517,6 +1553,16 @@ p, li { white-space: pre-wrap; }
         <source>units</source>
         <translation type="unfinished"></translation>
     </message>
+    <message>
+        <location filename="../../../src/sakia/money/quantitative.py" line="11"/>
+        <source>Q = Q
+                                        &lt;br &gt;
+                                        &lt;table&gt;
+                                        &lt;tr&gt;&lt;td&gt;Q&lt;/td&gt;&lt;td&gt;Quantitative value&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;/table&gt;
+                                      </source>
+        <translation type="unfinished"></translation>
+    </message>
 </context>
 <context>
     <name>QuantitativeZSum</name>
@@ -1535,6 +1581,28 @@ p, li { white-space: pre-wrap; }
         <source>Q0</source>
         <translation type="unfinished"></translation>
     </message>
+    <message>
+        <location filename="../../../src/sakia/money/quant_zerosum.py" line="24"/>
+        <source>Quantitative at zero sum is used to display the difference between&lt;br /&gt;
+                                            the quantitative value and the average quantitative value.&lt;br /&gt;
+                                            If it is positive, the value is above the average value, and if it is negative,&lt;br /&gt;
+                                            the value is under the average value.&lt;br /&gt;
+                                           </source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <location filename="../../../src/sakia/money/quant_zerosum.py" line="12"/>
+        <source>Q0 = Q - ( M(t-1) / N )
+                                        &lt;br &gt;
+                                        &lt;table&gt;
+                                        &lt;tr&gt;&lt;td&gt;Q0&lt;/td&gt;&lt;td&gt;Quantitative value at zero sum&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;Q&lt;/td&gt;&lt;td&gt;Quantitative value&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;M&lt;/td&gt;&lt;td&gt;Monetary mass&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;N&lt;/td&gt;&lt;td&gt;Members count&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;t-1&lt;/td&gt;&lt;td&gt;Previous UD time&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;/table&gt;</source>
+        <translation type="unfinished"></translation>
+    </message>
 </context>
 <context>
     <name>Relative</name>
@@ -1548,6 +1616,29 @@ p, li { white-space: pre-wrap; }
         <source>{0} {1}{2}</source>
         <translation type="unfinished"></translation>
     </message>
+    <message>
+        <location filename="../../../src/sakia/money/relative.py" line="12"/>
+        <source>R = Q / UD(t)
+                                        &lt;br &gt;
+                                        &lt;table&gt;
+                                        &lt;tr&gt;&lt;td&gt;R&lt;/td&gt;&lt;td&gt;Relative value&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;Q&lt;/td&gt;&lt;td&gt;Quantitative value&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;UD&lt;/td&gt;&lt;td&gt;Universal Dividend&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;t&lt;/td&gt;&lt;td&gt;Last UD time&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;/table&gt;</source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <location filename="../../../src/sakia/money/relative.py" line="23"/>
+        <source>Relative referential of the money.&lt;br /&gt;
+                                          Relative value R is calculated by dividing the quantitative value Q by the last&lt;br /&gt;
+                                           Universal Dividend UD.&lt;br /&gt;
+                                          This referential is the most practical one to display prices and accounts.&lt;br /&gt;
+                                          No money creation or destruction is apparent here and every account tend to&lt;br /&gt;
+                                           the average.
+                                          </source>
+        <translation type="unfinished"></translation>
+    </message>
 </context>
 <context>
     <name>RelativeZSum</name>
@@ -1566,6 +1657,29 @@ p, li { white-space: pre-wrap; }
         <source>R0 UD</source>
         <translation type="unfinished"></translation>
     </message>
+    <message>
+        <location filename="../../../src/sakia/money/relative_zerosum.py" line="25"/>
+        <source>Relative at zero sum is used to display the difference between&lt;br /&gt;
+                                            the relative value and the average relative value.&lt;br /&gt;
+                                            If it is positive, the value is above the average value, and if it is negative,&lt;br /&gt;
+                                            the value is under the average value.&lt;br /&gt;
+                                           </source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <location filename="../../../src/sakia/money/relative_zerosum.py" line="12"/>
+        <source>R0 = (Q / UD(t)) - (( M(t-1) / N ) / UD(t))
+                                        &lt;br &gt;
+                                        &lt;table&gt;
+                                        &lt;tr&gt;&lt;td&gt;R0&lt;/td&gt;&lt;td&gt;Relative value at zero sum&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;R&lt;/td&gt;&lt;td&gt;Relative value&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;M&lt;/td&gt;&lt;td&gt;Monetary mass&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;N&lt;/td&gt;&lt;td&gt;Members count&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;t&lt;/td&gt;&lt;td&gt;Last UD time&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;t-1&lt;/td&gt;&lt;td&gt;Penultimate UD time&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;/table&gt;</source>
+        <translation type="unfinished"></translation>
+    </message>
 </context>
 <context>
     <name>RevocationDialog</name>
@@ -2015,11 +2129,6 @@ please wait...</source>
         <source>Check source condition</source>
         <translation type="unfinished"></translation>
     </message>
-    <message>
-        <location filename="../../../src/sakia/gui/sub/transfer/controller.py" line="392"/>
-        <source>&lt;li&gt;Error in {}: &lt;span style=&quot;color: red&quot;&gt;{} {}&lt;/span&gt;&lt;/li&gt;</source>
-        <translation type="unfinished"></translation>
-    </message>
 </context>
 <context>
     <name>TransferMoneyWidget</name>
diff --git a/res/i18n/ts/fr.ts b/res/i18n/ts/fr.ts
index 1183ad12fda7c94ee7c489bfb5cbeb41eea2b67a..baa642ddfe0274b0a162d0c511749910434c02d6 100644
--- a/res/i18n/ts/fr.ts
+++ b/res/i18n/ts/fr.ts
@@ -576,77 +576,77 @@ p, li { white-space: pre-wrap; }
 <context>
     <name>ContextMenu</name>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="319"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="330"/>
         <source>Warning</source>
         <translation>Avertissement</translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="43"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="44"/>
         <source>Informations</source>
         <translation>Informations</translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="53"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="54"/>
         <source>Certify identity</source>
         <translation>Certifier cette identité</translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="62"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="63"/>
         <source>View in Web of Trust</source>
         <translation>Voir dans la Toile de Confiance</translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="235"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="246"/>
         <source>Send money</source>
         <translation>Envoyer de la monnaie</translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="212"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="223"/>
         <source>Copy pubkey to clipboard</source>
         <translation>Copier la clé publique</translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="221"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="232"/>
         <source>Copy pubkey to clipboard (with CRC)</source>
         <translation>Copier la clé publique (avec CRC)</translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="97"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="98"/>
         <source>Copy self-certification document to clipboard</source>
         <translation>Copier le document d&apos;auto-certification</translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="114"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="115"/>
         <source>Transfer</source>
         <translation>Transfert</translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="118"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="119"/>
         <source>Send again</source>
         <translation>Renvoyer</translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="127"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="128"/>
         <source>Cancel</source>
         <translation>Annuler</translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="157"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="166"/>
         <source>Copy raw transaction to clipboard</source>
         <translation>Copier la transaction (format brut)</translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="169"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="178"/>
         <source>Copy transaction block to clipboard</source>
         <translation>Copier le bloc de la transaction</translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="199"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="210"/>
         <source>Send as source</source>
         <translation>Envoyer comme source</translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="188"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="197"/>
         <source>Dividend</source>
         <translation>Dividende</translation>
     </message>
@@ -1196,7 +1196,7 @@ p, li { white-space: pre-wrap; }
 <context>
     <name>NetworkController</name>
     <message>
-        <location filename="../../../src/sakia/gui/navigation/network/controller.py" line="55"/>
+        <location filename="../../../src/sakia/gui/navigation/network/controller.py" line="57"/>
         <source>Open in browser</source>
         <translation>Ouvrir dans le navigateur</translation>
     </message>
@@ -1331,6 +1331,55 @@ p, li { white-space: pre-wrap; }
         <translation>Veuillez entrer votre clé secrète</translation>
     </message>
 </context>
+<context>
+    <name>PercentOfAverage</name>
+    <message>
+        <location filename="../../../src/sakia/money/percent_of_average.py" line="12"/>
+        <source>PoA</source>
+        <translation>PàM</translation>
+    </message>
+    <message>
+        <location filename="../../../src/sakia/money/percent_of_average.py" line="11"/>
+        <source>{0} {1}{2}</source>
+        <translation>{0} {1}{2}</translation>
+    </message>
+    <message>
+        <location filename="../../../src/sakia/money/percent_of_average.py" line="13"/>
+        <source>PoA = (Q / ( M(t-1) / N)) / 100
+                                        &lt;br &gt;
+                                        &lt;table&gt;
+                                        &lt;tr&gt;&lt;td&gt;PoA&lt;/td&gt;&lt;td&gt;Percent of Average value&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;Q&lt;/td&gt;&lt;td&gt;Quantitative value&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;M&lt;/td&gt;&lt;td&gt;Monetary mass&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;N&lt;/td&gt;&lt;td&gt;Members count&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;/table&gt;</source>
+        <translation>PàM = (Q / ( M(t-1) / N)) / 100
+                                        &lt;br &gt;
+                                        &lt;table&gt;
+                                        &lt;tr&gt;&lt;td&gt;PàM&lt;/td&gt;&lt;td&gt;Valeur du Pourcentage à la Moyenne&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;Q&lt;/td&gt;&lt;td&gt;Valeur quantitative&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;M&lt;/td&gt;&lt;td&gt;Masse monétaire&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;N&lt;/td&gt;&lt;td&gt;Nombre de membres&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;/table&gt;</translation>
+    </message>
+    <message>
+        <location filename="../../../src/sakia/money/percent_of_average.py" line="24"/>
+        <source>Another relative referential of the money.&lt;br /&gt;
+                                          Percent of Average value PoA is calculated by dividing the quantitative value Q by the average&lt;br /&gt;
+                                           then multiply by one hundred.&lt;br /&gt;
+                                          This referential is relative and can be used to display prices and accounts, when UD growth is too slow.&lt;br /&gt;
+                                          No money creation or destruction is apparent here and every account tend to&lt;br /&gt;
+                                           the 100%.
+                                          </source>
+        <translation>Un autre référentiel relatif de la monnaie.&lt;br /&gt;
+                                          Le Pourcentage à la Moyenne PàM est calculé en divisant la valeur quantitative Q par la moyenne&lt;br /&gt;
+                                           puis en multipliant par 100.&lt;br /&gt;
+                                          Ce référentiel est relatif et peut être utilisé pour afficher les prix et les comptes, quand la croissance du DU est trop lente.&lt;br /&gt;
+                                          Aucune création ou destruction de monnaie n&apos;est apparente ici et les comptes convergent tous&lt;br /&gt;
+                                           vers 100%.
+                                          </translation>
+    </message>
+</context>
 <context>
     <name>PluginDialog</name>
     <message>
@@ -1518,6 +1567,21 @@ p, li { white-space: pre-wrap; }
         <source>units</source>
         <translation>unités</translation>
     </message>
+    <message>
+        <location filename="../../../src/sakia/money/quantitative.py" line="11"/>
+        <source>Q = Q
+                                        &lt;br &gt;
+                                        &lt;table&gt;
+                                        &lt;tr&gt;&lt;td&gt;Q&lt;/td&gt;&lt;td&gt;Quantitative value&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;/table&gt;
+                                      </source>
+        <translation>Q = Q
+                                        &lt;br &gt;
+                                        &lt;table&gt;
+                                        &lt;tr&gt;&lt;td&gt;Q&lt;/td&gt;&lt;td&gt;Valeur quantitative&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;/table&gt;
+                                      </translation>
+    </message>
 </context>
 <context>
     <name>QuantitativeZSum</name>
@@ -1536,6 +1600,40 @@ p, li { white-space: pre-wrap; }
         <source>Q0</source>
         <translation></translation>
     </message>
+    <message>
+        <location filename="../../../src/sakia/money/quant_zerosum.py" line="24"/>
+        <source>Quantitative at zero sum is used to display the difference between&lt;br /&gt;
+                                            the quantitative value and the average quantitative value.&lt;br /&gt;
+                                            If it is positive, the value is above the average value, and if it is negative,&lt;br /&gt;
+                                            the value is under the average value.&lt;br /&gt;
+                                           </source>
+        <translation>Le quantitatif à somme nulle est utilisé pour afficher la différence entre&lt;br /&gt;
+                                            la valeur quantitative et la valeur moyenne.&lt;br /&gt;
+                                            Si c&apos;est positif, la valeur est au-dessus de la moyenne, et si c&apos;est négatif,&lt;br /&gt;
+                                            la valeur est en-dessous de la moyenne.&lt;br /&gt;
+                                           </translation>
+    </message>
+    <message>
+        <location filename="../../../src/sakia/money/quant_zerosum.py" line="12"/>
+        <source>Q0 = Q - ( M(t-1) / N )
+                                        &lt;br &gt;
+                                        &lt;table&gt;
+                                        &lt;tr&gt;&lt;td&gt;Q0&lt;/td&gt;&lt;td&gt;Quantitative value at zero sum&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;Q&lt;/td&gt;&lt;td&gt;Quantitative value&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;M&lt;/td&gt;&lt;td&gt;Monetary mass&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;N&lt;/td&gt;&lt;td&gt;Members count&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;t-1&lt;/td&gt;&lt;td&gt;Previous UD time&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;/table&gt;</source>
+        <translation>Q0 = Q - ( M(t-1) / N )
+                                        &lt;br &gt;
+                                        &lt;table&gt;
+                                        &lt;tr&gt;&lt;td&gt;Q0&lt;/td&gt;&lt;td&gt;Valeur quantitative à somme nulle&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;Q&lt;/td&gt;&lt;td&gt;Valeur quantitative&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;M&lt;/td&gt;&lt;td&gt;Masse monétaire&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;N&lt;/td&gt;&lt;td&gt;Nombre de membre&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;t-1&lt;/td&gt;&lt;td&gt;Temps du DU précédant&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;/table&gt;</translation>
+    </message>
 </context>
 <context>
     <name>Relative</name>
@@ -1549,6 +1647,42 @@ p, li { white-space: pre-wrap; }
         <source>{0} {1}{2}</source>
         <translation>{0} {1}{2}</translation>
     </message>
+    <message>
+        <location filename="../../../src/sakia/money/relative.py" line="12"/>
+        <source>R = Q / UD(t)
+                                        &lt;br &gt;
+                                        &lt;table&gt;
+                                        &lt;tr&gt;&lt;td&gt;R&lt;/td&gt;&lt;td&gt;Relative value&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;Q&lt;/td&gt;&lt;td&gt;Quantitative value&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;UD&lt;/td&gt;&lt;td&gt;Universal Dividend&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;t&lt;/td&gt;&lt;td&gt;Last UD time&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;/table&gt;</source>
+        <translation>R = Q / UD(t)
+                                        &lt;br &gt;
+                                        &lt;table&gt;
+                                        &lt;tr&gt;&lt;td&gt;R&lt;/td&gt;&lt;td&gt;Valeur relative&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;Q&lt;/td&gt;&lt;td&gt;Valeur quantitative&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;UD&lt;/td&gt;&lt;td&gt;Dividende Universel&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;t&lt;/td&gt;&lt;td&gt;Temps du dernier DU&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;/table&gt;</translation>
+    </message>
+    <message>
+        <location filename="../../../src/sakia/money/relative.py" line="23"/>
+        <source>Relative referential of the money.&lt;br /&gt;
+                                          Relative value R is calculated by dividing the quantitative value Q by the last&lt;br /&gt;
+                                           Universal Dividend UD.&lt;br /&gt;
+                                          This referential is the most practical one to display prices and accounts.&lt;br /&gt;
+                                          No money creation or destruction is apparent here and every account tend to&lt;br /&gt;
+                                           the average.
+                                          </source>
+        <translation>Référentiel relatif de la monnaie.&lt;br /&gt;
+                                          La valeur relative R est calculée en divisant la valeur quantitative par la valeur du dernier&lt;br /&gt;
+                                           Dividende Universel DU.&lt;br /&gt;
+                                          Ce référentiel est le plus pratique pour afficher les prix et les comptes.&lt;br /&gt;
+                                          Aucune création ou destruction de monnaie n&apos;est apparente ici et tous les comptes convergent vers&lt;br /&gt;
+                                           la moyenne.
+                                          </translation>
+    </message>
 </context>
 <context>
     <name>RelativeZSum</name>
@@ -1567,6 +1701,42 @@ p, li { white-space: pre-wrap; }
         <source>R0 UD</source>
         <translation>R0 DU</translation>
     </message>
+    <message>
+        <location filename="../../../src/sakia/money/relative_zerosum.py" line="25"/>
+        <source>Relative at zero sum is used to display the difference between&lt;br /&gt;
+                                            the relative value and the average relative value.&lt;br /&gt;
+                                            If it is positive, the value is above the average value, and if it is negative,&lt;br /&gt;
+                                            the value is under the average value.&lt;br /&gt;
+                                           </source>
+        <translation>Le référentiel relatif à somme nulle est utilisé pour afficher la différence entre&lt;br /&gt;
+                                            la valeur relative et la valeur relative moyenne.&lt;br /&gt;
+                                            Si c&apos;est positif, la valeur est au-dessus de la moyenne, et si c&apos;est négatif,&lt;br /&gt;
+                                            la valeur est en-dessous de la moyenne.&lt;br /&gt;
+                                           </translation>
+    </message>
+    <message>
+        <location filename="../../../src/sakia/money/relative_zerosum.py" line="12"/>
+        <source>R0 = (Q / UD(t)) - (( M(t-1) / N ) / UD(t))
+                                        &lt;br &gt;
+                                        &lt;table&gt;
+                                        &lt;tr&gt;&lt;td&gt;R0&lt;/td&gt;&lt;td&gt;Relative value at zero sum&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;R&lt;/td&gt;&lt;td&gt;Relative value&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;M&lt;/td&gt;&lt;td&gt;Monetary mass&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;N&lt;/td&gt;&lt;td&gt;Members count&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;t&lt;/td&gt;&lt;td&gt;Last UD time&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;t-1&lt;/td&gt;&lt;td&gt;Penultimate UD time&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;/table&gt;</source>
+        <translation>R0 = (Q / UD(t)) - (( M(t-1) / N ) / UD(t))
+                                        &lt;br &gt;
+                                        &lt;table&gt;
+                                        &lt;tr&gt;&lt;td&gt;R0&lt;/td&gt;&lt;td&gt;Valeur relative à somme nulle&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;R&lt;/td&gt;&lt;td&gt;Valeur relative&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;M&lt;/td&gt;&lt;td&gt;Masse monétaire&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;N&lt;/td&gt;&lt;td&gt;Nombre de membres&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;t&lt;/td&gt;&lt;td&gt;Temps du dernier DU&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;t-1&lt;/td&gt;&lt;td&gt;Temps de l&apos;avant dernier DU&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;/table&gt;</translation>
+    </message>
 </context>
 <context>
     <name>RevocationDialog</name>
@@ -2017,11 +2187,6 @@ veuillez patienter...</translation>
         <source>Check source condition</source>
         <translation>Verification condition source</translation>
     </message>
-    <message>
-        <location filename="../../../src/sakia/gui/sub/transfer/controller.py" line="392"/>
-        <source>&lt;li&gt;Error in {}: &lt;span style=&quot;color: red&quot;&gt;{} {}&lt;/span&gt;&lt;/li&gt;</source>
-        <translation type="unfinished">&lt;li&gt;Erreur sur {}: &lt;span style=&quot;color: red&quot;&gt;{} {}&lt;/span&gt;&lt;/li&gt;</translation>
-    </message>
 </context>
 <context>
     <name>TransferMoneyWidget</name>
diff --git a/res/i18n/ts/it.ts b/res/i18n/ts/it.ts
index 8feb72f5e7409604aef61ff71aa25c833b20faf2..e227779956f117abd139bc9716e27bbecc3922f3 100644
--- a/res/i18n/ts/it.ts
+++ b/res/i18n/ts/it.ts
@@ -575,77 +575,77 @@ p, li { white-space: pre-wrap; }
 <context>
     <name>ContextMenu</name>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="319"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="330"/>
         <source>Warning</source>
         <translation type="unfinished">Avvertimento</translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="43"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="44"/>
         <source>Informations</source>
         <translation type="unfinished">Informazioni</translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="53"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="54"/>
         <source>Certify identity</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="62"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="63"/>
         <source>View in Web of Trust</source>
         <translation type="unfinished">Vedi in Rete della Fiducia</translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="235"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="246"/>
         <source>Send money</source>
         <translation type="unfinished">Invia denaro</translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="212"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="223"/>
         <source>Copy pubkey to clipboard</source>
         <translation type="unfinished">Copia chiave pubblica negli appunti</translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="221"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="232"/>
         <source>Copy pubkey to clipboard (with CRC)</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="97"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="98"/>
         <source>Copy self-certification document to clipboard</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="114"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="115"/>
         <source>Transfer</source>
         <translation type="unfinished">Trasferi</translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="118"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="119"/>
         <source>Send again</source>
         <translation type="unfinished">Invia di nuovo</translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="127"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="128"/>
         <source>Cancel</source>
         <translation type="unfinished">Annulla</translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="157"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="166"/>
         <source>Copy raw transaction to clipboard</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="169"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="178"/>
         <source>Copy transaction block to clipboard</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="199"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="210"/>
         <source>Send as source</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="188"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="197"/>
         <source>Dividend</source>
         <translation type="unfinished"></translation>
     </message>
@@ -1195,7 +1195,7 @@ p, li { white-space: pre-wrap; }
 <context>
     <name>NetworkController</name>
     <message>
-        <location filename="../../../src/sakia/gui/navigation/network/controller.py" line="55"/>
+        <location filename="../../../src/sakia/gui/navigation/network/controller.py" line="57"/>
         <source>Open in browser</source>
         <translation type="unfinished">Apri nel browser</translation>
     </message>
@@ -1330,6 +1330,42 @@ p, li { white-space: pre-wrap; }
         <translation type="unfinished"></translation>
     </message>
 </context>
+<context>
+    <name>PercentOfAverage</name>
+    <message>
+        <location filename="../../../src/sakia/money/percent_of_average.py" line="12"/>
+        <source>PoA</source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <location filename="../../../src/sakia/money/percent_of_average.py" line="11"/>
+        <source>{0} {1}{2}</source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <location filename="../../../src/sakia/money/percent_of_average.py" line="13"/>
+        <source>PoA = (Q / ( M(t-1) / N)) / 100
+                                        &lt;br &gt;
+                                        &lt;table&gt;
+                                        &lt;tr&gt;&lt;td&gt;PoA&lt;/td&gt;&lt;td&gt;Percent of Average value&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;Q&lt;/td&gt;&lt;td&gt;Quantitative value&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;M&lt;/td&gt;&lt;td&gt;Monetary mass&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;N&lt;/td&gt;&lt;td&gt;Members count&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;/table&gt;</source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <location filename="../../../src/sakia/money/percent_of_average.py" line="24"/>
+        <source>Another relative referential of the money.&lt;br /&gt;
+                                          Percent of Average value PoA is calculated by dividing the quantitative value Q by the average&lt;br /&gt;
+                                           then multiply by one hundred.&lt;br /&gt;
+                                          This referential is relative and can be used to display prices and accounts, when UD growth is too slow.&lt;br /&gt;
+                                          No money creation or destruction is apparent here and every account tend to&lt;br /&gt;
+                                           the 100%.
+                                          </source>
+        <translation type="unfinished"></translation>
+    </message>
+</context>
 <context>
     <name>PluginDialog</name>
     <message>
@@ -1517,6 +1553,16 @@ p, li { white-space: pre-wrap; }
         <source>units</source>
         <translation type="unfinished"></translation>
     </message>
+    <message>
+        <location filename="../../../src/sakia/money/quantitative.py" line="11"/>
+        <source>Q = Q
+                                        &lt;br &gt;
+                                        &lt;table&gt;
+                                        &lt;tr&gt;&lt;td&gt;Q&lt;/td&gt;&lt;td&gt;Quantitative value&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;/table&gt;
+                                      </source>
+        <translation type="unfinished"></translation>
+    </message>
 </context>
 <context>
     <name>QuantitativeZSum</name>
@@ -1535,6 +1581,28 @@ p, li { white-space: pre-wrap; }
         <source>Q0</source>
         <translation type="unfinished"></translation>
     </message>
+    <message>
+        <location filename="../../../src/sakia/money/quant_zerosum.py" line="24"/>
+        <source>Quantitative at zero sum is used to display the difference between&lt;br /&gt;
+                                            the quantitative value and the average quantitative value.&lt;br /&gt;
+                                            If it is positive, the value is above the average value, and if it is negative,&lt;br /&gt;
+                                            the value is under the average value.&lt;br /&gt;
+                                           </source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <location filename="../../../src/sakia/money/quant_zerosum.py" line="12"/>
+        <source>Q0 = Q - ( M(t-1) / N )
+                                        &lt;br &gt;
+                                        &lt;table&gt;
+                                        &lt;tr&gt;&lt;td&gt;Q0&lt;/td&gt;&lt;td&gt;Quantitative value at zero sum&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;Q&lt;/td&gt;&lt;td&gt;Quantitative value&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;M&lt;/td&gt;&lt;td&gt;Monetary mass&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;N&lt;/td&gt;&lt;td&gt;Members count&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;t-1&lt;/td&gt;&lt;td&gt;Previous UD time&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;/table&gt;</source>
+        <translation type="unfinished"></translation>
+    </message>
 </context>
 <context>
     <name>Relative</name>
@@ -1548,6 +1616,29 @@ p, li { white-space: pre-wrap; }
         <source>{0} {1}{2}</source>
         <translation type="unfinished"></translation>
     </message>
+    <message>
+        <location filename="../../../src/sakia/money/relative.py" line="12"/>
+        <source>R = Q / UD(t)
+                                        &lt;br &gt;
+                                        &lt;table&gt;
+                                        &lt;tr&gt;&lt;td&gt;R&lt;/td&gt;&lt;td&gt;Relative value&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;Q&lt;/td&gt;&lt;td&gt;Quantitative value&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;UD&lt;/td&gt;&lt;td&gt;Universal Dividend&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;t&lt;/td&gt;&lt;td&gt;Last UD time&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;/table&gt;</source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <location filename="../../../src/sakia/money/relative.py" line="23"/>
+        <source>Relative referential of the money.&lt;br /&gt;
+                                          Relative value R is calculated by dividing the quantitative value Q by the last&lt;br /&gt;
+                                           Universal Dividend UD.&lt;br /&gt;
+                                          This referential is the most practical one to display prices and accounts.&lt;br /&gt;
+                                          No money creation or destruction is apparent here and every account tend to&lt;br /&gt;
+                                           the average.
+                                          </source>
+        <translation type="unfinished"></translation>
+    </message>
 </context>
 <context>
     <name>RelativeZSum</name>
@@ -1566,6 +1657,29 @@ p, li { white-space: pre-wrap; }
         <source>R0 UD</source>
         <translation type="unfinished"></translation>
     </message>
+    <message>
+        <location filename="../../../src/sakia/money/relative_zerosum.py" line="25"/>
+        <source>Relative at zero sum is used to display the difference between&lt;br /&gt;
+                                            the relative value and the average relative value.&lt;br /&gt;
+                                            If it is positive, the value is above the average value, and if it is negative,&lt;br /&gt;
+                                            the value is under the average value.&lt;br /&gt;
+                                           </source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <location filename="../../../src/sakia/money/relative_zerosum.py" line="12"/>
+        <source>R0 = (Q / UD(t)) - (( M(t-1) / N ) / UD(t))
+                                        &lt;br &gt;
+                                        &lt;table&gt;
+                                        &lt;tr&gt;&lt;td&gt;R0&lt;/td&gt;&lt;td&gt;Relative value at zero sum&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;R&lt;/td&gt;&lt;td&gt;Relative value&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;M&lt;/td&gt;&lt;td&gt;Monetary mass&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;N&lt;/td&gt;&lt;td&gt;Members count&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;t&lt;/td&gt;&lt;td&gt;Last UD time&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;t-1&lt;/td&gt;&lt;td&gt;Penultimate UD time&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;/table&gt;</source>
+        <translation type="unfinished"></translation>
+    </message>
 </context>
 <context>
     <name>RevocationDialog</name>
@@ -2015,11 +2129,6 @@ please wait...</source>
         <source>Check source condition</source>
         <translation type="unfinished"></translation>
     </message>
-    <message>
-        <location filename="../../../src/sakia/gui/sub/transfer/controller.py" line="392"/>
-        <source>&lt;li&gt;Error in {}: &lt;span style=&quot;color: red&quot;&gt;{} {}&lt;/span&gt;&lt;/li&gt;</source>
-        <translation type="unfinished"></translation>
-    </message>
 </context>
 <context>
     <name>TransferMoneyWidget</name>
diff --git a/res/i18n/ts/pl.ts b/res/i18n/ts/pl.ts
index 07148676f11c4b526e368a18485073ccbedf9cf8..aa043e07aceb3450218be2d40cad6917a86c2b3b 100644
--- a/res/i18n/ts/pl.ts
+++ b/res/i18n/ts/pl.ts
@@ -575,77 +575,77 @@ p, li { white-space: pre-wrap; }
 <context>
     <name>ContextMenu</name>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="319"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="330"/>
         <source>Warning</source>
         <translation type="unfinished">Ostrzeżenie</translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="43"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="44"/>
         <source>Informations</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="53"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="54"/>
         <source>Certify identity</source>
         <translation type="unfinished">Poświadcza tożsamość</translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="62"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="63"/>
         <source>View in Web of Trust</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="235"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="246"/>
         <source>Send money</source>
         <translation type="unfinished">Wyślij pieniądze</translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="212"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="223"/>
         <source>Copy pubkey to clipboard</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="221"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="232"/>
         <source>Copy pubkey to clipboard (with CRC)</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="97"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="98"/>
         <source>Copy self-certification document to clipboard</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="114"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="115"/>
         <source>Transfer</source>
         <translation type="unfinished">Przenieść</translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="118"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="119"/>
         <source>Send again</source>
         <translation type="unfinished">Wyślij ponownie</translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="127"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="128"/>
         <source>Cancel</source>
         <translation type="unfinished">Anuluj</translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="157"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="166"/>
         <source>Copy raw transaction to clipboard</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="169"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="178"/>
         <source>Copy transaction block to clipboard</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="199"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="210"/>
         <source>Send as source</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="188"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="197"/>
         <source>Dividend</source>
         <translation type="unfinished"></translation>
     </message>
@@ -1195,7 +1195,7 @@ p, li { white-space: pre-wrap; }
 <context>
     <name>NetworkController</name>
     <message>
-        <location filename="../../../src/sakia/gui/navigation/network/controller.py" line="55"/>
+        <location filename="../../../src/sakia/gui/navigation/network/controller.py" line="57"/>
         <source>Open in browser</source>
         <translation type="unfinished"></translation>
     </message>
@@ -1330,6 +1330,42 @@ p, li { white-space: pre-wrap; }
         <translation type="unfinished"></translation>
     </message>
 </context>
+<context>
+    <name>PercentOfAverage</name>
+    <message>
+        <location filename="../../../src/sakia/money/percent_of_average.py" line="12"/>
+        <source>PoA</source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <location filename="../../../src/sakia/money/percent_of_average.py" line="11"/>
+        <source>{0} {1}{2}</source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <location filename="../../../src/sakia/money/percent_of_average.py" line="13"/>
+        <source>PoA = (Q / ( M(t-1) / N)) / 100
+                                        &lt;br &gt;
+                                        &lt;table&gt;
+                                        &lt;tr&gt;&lt;td&gt;PoA&lt;/td&gt;&lt;td&gt;Percent of Average value&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;Q&lt;/td&gt;&lt;td&gt;Quantitative value&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;M&lt;/td&gt;&lt;td&gt;Monetary mass&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;N&lt;/td&gt;&lt;td&gt;Members count&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;/table&gt;</source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <location filename="../../../src/sakia/money/percent_of_average.py" line="24"/>
+        <source>Another relative referential of the money.&lt;br /&gt;
+                                          Percent of Average value PoA is calculated by dividing the quantitative value Q by the average&lt;br /&gt;
+                                           then multiply by one hundred.&lt;br /&gt;
+                                          This referential is relative and can be used to display prices and accounts, when UD growth is too slow.&lt;br /&gt;
+                                          No money creation or destruction is apparent here and every account tend to&lt;br /&gt;
+                                           the 100%.
+                                          </source>
+        <translation type="unfinished"></translation>
+    </message>
+</context>
 <context>
     <name>PluginDialog</name>
     <message>
@@ -1517,6 +1553,16 @@ p, li { white-space: pre-wrap; }
         <source>units</source>
         <translation type="unfinished"></translation>
     </message>
+    <message>
+        <location filename="../../../src/sakia/money/quantitative.py" line="11"/>
+        <source>Q = Q
+                                        &lt;br &gt;
+                                        &lt;table&gt;
+                                        &lt;tr&gt;&lt;td&gt;Q&lt;/td&gt;&lt;td&gt;Quantitative value&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;/table&gt;
+                                      </source>
+        <translation type="unfinished"></translation>
+    </message>
 </context>
 <context>
     <name>QuantitativeZSum</name>
@@ -1535,6 +1581,28 @@ p, li { white-space: pre-wrap; }
         <source>Q0</source>
         <translation type="unfinished"></translation>
     </message>
+    <message>
+        <location filename="../../../src/sakia/money/quant_zerosum.py" line="24"/>
+        <source>Quantitative at zero sum is used to display the difference between&lt;br /&gt;
+                                            the quantitative value and the average quantitative value.&lt;br /&gt;
+                                            If it is positive, the value is above the average value, and if it is negative,&lt;br /&gt;
+                                            the value is under the average value.&lt;br /&gt;
+                                           </source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <location filename="../../../src/sakia/money/quant_zerosum.py" line="12"/>
+        <source>Q0 = Q - ( M(t-1) / N )
+                                        &lt;br &gt;
+                                        &lt;table&gt;
+                                        &lt;tr&gt;&lt;td&gt;Q0&lt;/td&gt;&lt;td&gt;Quantitative value at zero sum&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;Q&lt;/td&gt;&lt;td&gt;Quantitative value&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;M&lt;/td&gt;&lt;td&gt;Monetary mass&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;N&lt;/td&gt;&lt;td&gt;Members count&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;t-1&lt;/td&gt;&lt;td&gt;Previous UD time&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;/table&gt;</source>
+        <translation type="unfinished"></translation>
+    </message>
 </context>
 <context>
     <name>Relative</name>
@@ -1548,6 +1616,29 @@ p, li { white-space: pre-wrap; }
         <source>{0} {1}{2}</source>
         <translation type="unfinished"></translation>
     </message>
+    <message>
+        <location filename="../../../src/sakia/money/relative.py" line="12"/>
+        <source>R = Q / UD(t)
+                                        &lt;br &gt;
+                                        &lt;table&gt;
+                                        &lt;tr&gt;&lt;td&gt;R&lt;/td&gt;&lt;td&gt;Relative value&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;Q&lt;/td&gt;&lt;td&gt;Quantitative value&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;UD&lt;/td&gt;&lt;td&gt;Universal Dividend&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;t&lt;/td&gt;&lt;td&gt;Last UD time&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;/table&gt;</source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <location filename="../../../src/sakia/money/relative.py" line="23"/>
+        <source>Relative referential of the money.&lt;br /&gt;
+                                          Relative value R is calculated by dividing the quantitative value Q by the last&lt;br /&gt;
+                                           Universal Dividend UD.&lt;br /&gt;
+                                          This referential is the most practical one to display prices and accounts.&lt;br /&gt;
+                                          No money creation or destruction is apparent here and every account tend to&lt;br /&gt;
+                                           the average.
+                                          </source>
+        <translation type="unfinished"></translation>
+    </message>
 </context>
 <context>
     <name>RelativeZSum</name>
@@ -1566,6 +1657,29 @@ p, li { white-space: pre-wrap; }
         <source>R0 UD</source>
         <translation type="unfinished"></translation>
     </message>
+    <message>
+        <location filename="../../../src/sakia/money/relative_zerosum.py" line="25"/>
+        <source>Relative at zero sum is used to display the difference between&lt;br /&gt;
+                                            the relative value and the average relative value.&lt;br /&gt;
+                                            If it is positive, the value is above the average value, and if it is negative,&lt;br /&gt;
+                                            the value is under the average value.&lt;br /&gt;
+                                           </source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <location filename="../../../src/sakia/money/relative_zerosum.py" line="12"/>
+        <source>R0 = (Q / UD(t)) - (( M(t-1) / N ) / UD(t))
+                                        &lt;br &gt;
+                                        &lt;table&gt;
+                                        &lt;tr&gt;&lt;td&gt;R0&lt;/td&gt;&lt;td&gt;Relative value at zero sum&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;R&lt;/td&gt;&lt;td&gt;Relative value&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;M&lt;/td&gt;&lt;td&gt;Monetary mass&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;N&lt;/td&gt;&lt;td&gt;Members count&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;t&lt;/td&gt;&lt;td&gt;Last UD time&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;t-1&lt;/td&gt;&lt;td&gt;Penultimate UD time&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;/table&gt;</source>
+        <translation type="unfinished"></translation>
+    </message>
 </context>
 <context>
     <name>RevocationDialog</name>
@@ -2015,11 +2129,6 @@ please wait...</source>
         <source>Check source condition</source>
         <translation type="unfinished"></translation>
     </message>
-    <message>
-        <location filename="../../../src/sakia/gui/sub/transfer/controller.py" line="392"/>
-        <source>&lt;li&gt;Error in {}: &lt;span style=&quot;color: red&quot;&gt;{} {}&lt;/span&gt;&lt;/li&gt;</source>
-        <translation type="unfinished"></translation>
-    </message>
 </context>
 <context>
     <name>TransferMoneyWidget</name>
diff --git a/res/i18n/ts/pt.ts b/res/i18n/ts/pt.ts
index ab0c03ac55f8e4c6f2a09abb6830078df4ff6413..dd9c03fae88a58e6b74b797ed6f09b17d9317136 100644
--- a/res/i18n/ts/pt.ts
+++ b/res/i18n/ts/pt.ts
@@ -575,77 +575,77 @@ p, li { white-space: pre-wrap; }
 <context>
     <name>ContextMenu</name>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="319"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="330"/>
         <source>Warning</source>
         <translation type="unfinished">Aviso</translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="43"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="44"/>
         <source>Informations</source>
         <translation type="unfinished">Informações</translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="53"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="54"/>
         <source>Certify identity</source>
         <translation type="unfinished">Certificar identidade</translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="62"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="63"/>
         <source>View in Web of Trust</source>
         <translation type="unfinished">Ver na Rede de Confiança</translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="235"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="246"/>
         <source>Send money</source>
         <translation type="unfinished">Enviar dinheiro</translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="212"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="223"/>
         <source>Copy pubkey to clipboard</source>
         <translation type="unfinished">Copiar chave pública para a área de transferência</translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="221"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="232"/>
         <source>Copy pubkey to clipboard (with CRC)</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="97"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="98"/>
         <source>Copy self-certification document to clipboard</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="114"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="115"/>
         <source>Transfer</source>
         <translation type="unfinished">Transferência</translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="118"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="119"/>
         <source>Send again</source>
         <translation type="unfinished">Enviar novamente</translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="127"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="128"/>
         <source>Cancel</source>
         <translation type="unfinished">Cancelar</translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="157"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="166"/>
         <source>Copy raw transaction to clipboard</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="169"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="178"/>
         <source>Copy transaction block to clipboard</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="199"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="210"/>
         <source>Send as source</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="188"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="197"/>
         <source>Dividend</source>
         <translation type="unfinished"></translation>
     </message>
@@ -1195,7 +1195,7 @@ p, li { white-space: pre-wrap; }
 <context>
     <name>NetworkController</name>
     <message>
-        <location filename="../../../src/sakia/gui/navigation/network/controller.py" line="55"/>
+        <location filename="../../../src/sakia/gui/navigation/network/controller.py" line="57"/>
         <source>Open in browser</source>
         <translation type="unfinished">Abrir no navegador</translation>
     </message>
@@ -1330,6 +1330,42 @@ p, li { white-space: pre-wrap; }
         <translation type="unfinished"></translation>
     </message>
 </context>
+<context>
+    <name>PercentOfAverage</name>
+    <message>
+        <location filename="../../../src/sakia/money/percent_of_average.py" line="12"/>
+        <source>PoA</source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <location filename="../../../src/sakia/money/percent_of_average.py" line="11"/>
+        <source>{0} {1}{2}</source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <location filename="../../../src/sakia/money/percent_of_average.py" line="13"/>
+        <source>PoA = (Q / ( M(t-1) / N)) / 100
+                                        &lt;br &gt;
+                                        &lt;table&gt;
+                                        &lt;tr&gt;&lt;td&gt;PoA&lt;/td&gt;&lt;td&gt;Percent of Average value&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;Q&lt;/td&gt;&lt;td&gt;Quantitative value&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;M&lt;/td&gt;&lt;td&gt;Monetary mass&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;N&lt;/td&gt;&lt;td&gt;Members count&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;/table&gt;</source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <location filename="../../../src/sakia/money/percent_of_average.py" line="24"/>
+        <source>Another relative referential of the money.&lt;br /&gt;
+                                          Percent of Average value PoA is calculated by dividing the quantitative value Q by the average&lt;br /&gt;
+                                           then multiply by one hundred.&lt;br /&gt;
+                                          This referential is relative and can be used to display prices and accounts, when UD growth is too slow.&lt;br /&gt;
+                                          No money creation or destruction is apparent here and every account tend to&lt;br /&gt;
+                                           the 100%.
+                                          </source>
+        <translation type="unfinished"></translation>
+    </message>
+</context>
 <context>
     <name>PluginDialog</name>
     <message>
@@ -1517,6 +1553,16 @@ p, li { white-space: pre-wrap; }
         <source>units</source>
         <translation type="unfinished"></translation>
     </message>
+    <message>
+        <location filename="../../../src/sakia/money/quantitative.py" line="11"/>
+        <source>Q = Q
+                                        &lt;br &gt;
+                                        &lt;table&gt;
+                                        &lt;tr&gt;&lt;td&gt;Q&lt;/td&gt;&lt;td&gt;Quantitative value&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;/table&gt;
+                                      </source>
+        <translation type="unfinished"></translation>
+    </message>
 </context>
 <context>
     <name>QuantitativeZSum</name>
@@ -1535,6 +1581,28 @@ p, li { white-space: pre-wrap; }
         <source>Q0</source>
         <translation type="unfinished"></translation>
     </message>
+    <message>
+        <location filename="../../../src/sakia/money/quant_zerosum.py" line="24"/>
+        <source>Quantitative at zero sum is used to display the difference between&lt;br /&gt;
+                                            the quantitative value and the average quantitative value.&lt;br /&gt;
+                                            If it is positive, the value is above the average value, and if it is negative,&lt;br /&gt;
+                                            the value is under the average value.&lt;br /&gt;
+                                           </source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <location filename="../../../src/sakia/money/quant_zerosum.py" line="12"/>
+        <source>Q0 = Q - ( M(t-1) / N )
+                                        &lt;br &gt;
+                                        &lt;table&gt;
+                                        &lt;tr&gt;&lt;td&gt;Q0&lt;/td&gt;&lt;td&gt;Quantitative value at zero sum&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;Q&lt;/td&gt;&lt;td&gt;Quantitative value&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;M&lt;/td&gt;&lt;td&gt;Monetary mass&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;N&lt;/td&gt;&lt;td&gt;Members count&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;t-1&lt;/td&gt;&lt;td&gt;Previous UD time&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;/table&gt;</source>
+        <translation type="unfinished"></translation>
+    </message>
 </context>
 <context>
     <name>Relative</name>
@@ -1548,6 +1616,29 @@ p, li { white-space: pre-wrap; }
         <source>{0} {1}{2}</source>
         <translation type="unfinished"></translation>
     </message>
+    <message>
+        <location filename="../../../src/sakia/money/relative.py" line="12"/>
+        <source>R = Q / UD(t)
+                                        &lt;br &gt;
+                                        &lt;table&gt;
+                                        &lt;tr&gt;&lt;td&gt;R&lt;/td&gt;&lt;td&gt;Relative value&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;Q&lt;/td&gt;&lt;td&gt;Quantitative value&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;UD&lt;/td&gt;&lt;td&gt;Universal Dividend&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;t&lt;/td&gt;&lt;td&gt;Last UD time&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;/table&gt;</source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <location filename="../../../src/sakia/money/relative.py" line="23"/>
+        <source>Relative referential of the money.&lt;br /&gt;
+                                          Relative value R is calculated by dividing the quantitative value Q by the last&lt;br /&gt;
+                                           Universal Dividend UD.&lt;br /&gt;
+                                          This referential is the most practical one to display prices and accounts.&lt;br /&gt;
+                                          No money creation or destruction is apparent here and every account tend to&lt;br /&gt;
+                                           the average.
+                                          </source>
+        <translation type="unfinished"></translation>
+    </message>
 </context>
 <context>
     <name>RelativeZSum</name>
@@ -1566,6 +1657,29 @@ p, li { white-space: pre-wrap; }
         <source>R0 UD</source>
         <translation type="unfinished"></translation>
     </message>
+    <message>
+        <location filename="../../../src/sakia/money/relative_zerosum.py" line="25"/>
+        <source>Relative at zero sum is used to display the difference between&lt;br /&gt;
+                                            the relative value and the average relative value.&lt;br /&gt;
+                                            If it is positive, the value is above the average value, and if it is negative,&lt;br /&gt;
+                                            the value is under the average value.&lt;br /&gt;
+                                           </source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <location filename="../../../src/sakia/money/relative_zerosum.py" line="12"/>
+        <source>R0 = (Q / UD(t)) - (( M(t-1) / N ) / UD(t))
+                                        &lt;br &gt;
+                                        &lt;table&gt;
+                                        &lt;tr&gt;&lt;td&gt;R0&lt;/td&gt;&lt;td&gt;Relative value at zero sum&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;R&lt;/td&gt;&lt;td&gt;Relative value&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;M&lt;/td&gt;&lt;td&gt;Monetary mass&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;N&lt;/td&gt;&lt;td&gt;Members count&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;t&lt;/td&gt;&lt;td&gt;Last UD time&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;t-1&lt;/td&gt;&lt;td&gt;Penultimate UD time&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;/table&gt;</source>
+        <translation type="unfinished"></translation>
+    </message>
 </context>
 <context>
     <name>RevocationDialog</name>
@@ -2015,11 +2129,6 @@ please wait...</source>
         <source>Check source condition</source>
         <translation type="unfinished"></translation>
     </message>
-    <message>
-        <location filename="../../../src/sakia/gui/sub/transfer/controller.py" line="392"/>
-        <source>&lt;li&gt;Error in {}: &lt;span style=&quot;color: red&quot;&gt;{} {}&lt;/span&gt;&lt;/li&gt;</source>
-        <translation type="unfinished"></translation>
-    </message>
 </context>
 <context>
     <name>TransferMoneyWidget</name>
diff --git a/res/i18n/ts/ru.ts b/res/i18n/ts/ru.ts
index 95a8221b7d6f20d652c8b1b52fe240a45d8d4623..163d9c320fcca7c68db87ccaf22e7a78404bbb22 100644
--- a/res/i18n/ts/ru.ts
+++ b/res/i18n/ts/ru.ts
@@ -575,77 +575,77 @@ p, li { white-space: pre-wrap; }
 <context>
     <name>ContextMenu</name>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="319"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="330"/>
         <source>Warning</source>
         <translation type="unfinished">Внимание</translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="43"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="44"/>
         <source>Informations</source>
         <translation type="unfinished">Данные</translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="53"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="54"/>
         <source>Certify identity</source>
         <translation type="unfinished">Удостоверить личность</translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="62"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="63"/>
         <source>View in Web of Trust</source>
         <translation type="unfinished">Посмотреть в Сети доверия</translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="235"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="246"/>
         <source>Send money</source>
         <translation type="unfinished">Отправить деньги</translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="212"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="223"/>
         <source>Copy pubkey to clipboard</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="221"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="232"/>
         <source>Copy pubkey to clipboard (with CRC)</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="97"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="98"/>
         <source>Copy self-certification document to clipboard</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="114"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="115"/>
         <source>Transfer</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="118"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="119"/>
         <source>Send again</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="127"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="128"/>
         <source>Cancel</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="157"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="166"/>
         <source>Copy raw transaction to clipboard</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="169"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="178"/>
         <source>Copy transaction block to clipboard</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="199"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="210"/>
         <source>Send as source</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="188"/>
+        <location filename="../../../src/sakia/gui/widgets/context_menu.py" line="197"/>
         <source>Dividend</source>
         <translation type="unfinished"></translation>
     </message>
@@ -1195,7 +1195,7 @@ p, li { white-space: pre-wrap; }
 <context>
     <name>NetworkController</name>
     <message>
-        <location filename="../../../src/sakia/gui/navigation/network/controller.py" line="55"/>
+        <location filename="../../../src/sakia/gui/navigation/network/controller.py" line="57"/>
         <source>Open in browser</source>
         <translation type="unfinished"></translation>
     </message>
@@ -1330,6 +1330,42 @@ p, li { white-space: pre-wrap; }
         <translation type="unfinished"></translation>
     </message>
 </context>
+<context>
+    <name>PercentOfAverage</name>
+    <message>
+        <location filename="../../../src/sakia/money/percent_of_average.py" line="12"/>
+        <source>PoA</source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <location filename="../../../src/sakia/money/percent_of_average.py" line="11"/>
+        <source>{0} {1}{2}</source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <location filename="../../../src/sakia/money/percent_of_average.py" line="13"/>
+        <source>PoA = (Q / ( M(t-1) / N)) / 100
+                                        &lt;br &gt;
+                                        &lt;table&gt;
+                                        &lt;tr&gt;&lt;td&gt;PoA&lt;/td&gt;&lt;td&gt;Percent of Average value&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;Q&lt;/td&gt;&lt;td&gt;Quantitative value&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;M&lt;/td&gt;&lt;td&gt;Monetary mass&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;N&lt;/td&gt;&lt;td&gt;Members count&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;/table&gt;</source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <location filename="../../../src/sakia/money/percent_of_average.py" line="24"/>
+        <source>Another relative referential of the money.&lt;br /&gt;
+                                          Percent of Average value PoA is calculated by dividing the quantitative value Q by the average&lt;br /&gt;
+                                           then multiply by one hundred.&lt;br /&gt;
+                                          This referential is relative and can be used to display prices and accounts, when UD growth is too slow.&lt;br /&gt;
+                                          No money creation or destruction is apparent here and every account tend to&lt;br /&gt;
+                                           the 100%.
+                                          </source>
+        <translation type="unfinished"></translation>
+    </message>
+</context>
 <context>
     <name>PluginDialog</name>
     <message>
@@ -1517,6 +1553,16 @@ p, li { white-space: pre-wrap; }
         <source>units</source>
         <translation type="unfinished"></translation>
     </message>
+    <message>
+        <location filename="../../../src/sakia/money/quantitative.py" line="11"/>
+        <source>Q = Q
+                                        &lt;br &gt;
+                                        &lt;table&gt;
+                                        &lt;tr&gt;&lt;td&gt;Q&lt;/td&gt;&lt;td&gt;Quantitative value&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;/table&gt;
+                                      </source>
+        <translation type="unfinished"></translation>
+    </message>
 </context>
 <context>
     <name>QuantitativeZSum</name>
@@ -1535,6 +1581,28 @@ p, li { white-space: pre-wrap; }
         <source>Q0</source>
         <translation type="unfinished"></translation>
     </message>
+    <message>
+        <location filename="../../../src/sakia/money/quant_zerosum.py" line="24"/>
+        <source>Quantitative at zero sum is used to display the difference between&lt;br /&gt;
+                                            the quantitative value and the average quantitative value.&lt;br /&gt;
+                                            If it is positive, the value is above the average value, and if it is negative,&lt;br /&gt;
+                                            the value is under the average value.&lt;br /&gt;
+                                           </source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <location filename="../../../src/sakia/money/quant_zerosum.py" line="12"/>
+        <source>Q0 = Q - ( M(t-1) / N )
+                                        &lt;br &gt;
+                                        &lt;table&gt;
+                                        &lt;tr&gt;&lt;td&gt;Q0&lt;/td&gt;&lt;td&gt;Quantitative value at zero sum&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;Q&lt;/td&gt;&lt;td&gt;Quantitative value&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;M&lt;/td&gt;&lt;td&gt;Monetary mass&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;N&lt;/td&gt;&lt;td&gt;Members count&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;t-1&lt;/td&gt;&lt;td&gt;Previous UD time&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;/table&gt;</source>
+        <translation type="unfinished"></translation>
+    </message>
 </context>
 <context>
     <name>Relative</name>
@@ -1548,6 +1616,29 @@ p, li { white-space: pre-wrap; }
         <source>{0} {1}{2}</source>
         <translation type="unfinished"></translation>
     </message>
+    <message>
+        <location filename="../../../src/sakia/money/relative.py" line="12"/>
+        <source>R = Q / UD(t)
+                                        &lt;br &gt;
+                                        &lt;table&gt;
+                                        &lt;tr&gt;&lt;td&gt;R&lt;/td&gt;&lt;td&gt;Relative value&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;Q&lt;/td&gt;&lt;td&gt;Quantitative value&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;UD&lt;/td&gt;&lt;td&gt;Universal Dividend&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;t&lt;/td&gt;&lt;td&gt;Last UD time&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;/table&gt;</source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <location filename="../../../src/sakia/money/relative.py" line="23"/>
+        <source>Relative referential of the money.&lt;br /&gt;
+                                          Relative value R is calculated by dividing the quantitative value Q by the last&lt;br /&gt;
+                                           Universal Dividend UD.&lt;br /&gt;
+                                          This referential is the most practical one to display prices and accounts.&lt;br /&gt;
+                                          No money creation or destruction is apparent here and every account tend to&lt;br /&gt;
+                                           the average.
+                                          </source>
+        <translation type="unfinished"></translation>
+    </message>
 </context>
 <context>
     <name>RelativeZSum</name>
@@ -1566,6 +1657,29 @@ p, li { white-space: pre-wrap; }
         <source>R0 UD</source>
         <translation type="unfinished"></translation>
     </message>
+    <message>
+        <location filename="../../../src/sakia/money/relative_zerosum.py" line="25"/>
+        <source>Relative at zero sum is used to display the difference between&lt;br /&gt;
+                                            the relative value and the average relative value.&lt;br /&gt;
+                                            If it is positive, the value is above the average value, and if it is negative,&lt;br /&gt;
+                                            the value is under the average value.&lt;br /&gt;
+                                           </source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <location filename="../../../src/sakia/money/relative_zerosum.py" line="12"/>
+        <source>R0 = (Q / UD(t)) - (( M(t-1) / N ) / UD(t))
+                                        &lt;br &gt;
+                                        &lt;table&gt;
+                                        &lt;tr&gt;&lt;td&gt;R0&lt;/td&gt;&lt;td&gt;Relative value at zero sum&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;R&lt;/td&gt;&lt;td&gt;Relative value&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;M&lt;/td&gt;&lt;td&gt;Monetary mass&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;N&lt;/td&gt;&lt;td&gt;Members count&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;t&lt;/td&gt;&lt;td&gt;Last UD time&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;tr&gt;&lt;td&gt;t-1&lt;/td&gt;&lt;td&gt;Penultimate UD time&lt;/td&gt;&lt;/tr&gt;
+                                        &lt;/table&gt;</source>
+        <translation type="unfinished"></translation>
+    </message>
 </context>
 <context>
     <name>RevocationDialog</name>
@@ -2015,11 +2129,6 @@ please wait...</source>
         <source>Check source condition</source>
         <translation type="unfinished"></translation>
     </message>
-    <message>
-        <location filename="../../../src/sakia/gui/sub/transfer/controller.py" line="392"/>
-        <source>&lt;li&gt;Error in {}: &lt;span style=&quot;color: red&quot;&gt;{} {}&lt;/span&gt;&lt;/li&gt;</source>
-        <translation type="unfinished"></translation>
-    </message>
 </context>
 <context>
     <name>TransferMoneyWidget</name>
diff --git a/src/sakia/money/percent_of_average.py b/src/sakia/money/percent_of_average.py
index 2f33c43ceb193ac777b44648d0097abf1454d947..7d030121d8e277d90d928023aa6031abeee69f48 100644
--- a/src/sakia/money/percent_of_average.py
+++ b/src/sakia/money/percent_of_average.py
@@ -23,12 +23,12 @@ class PercentOfAverage(BaseReferential):
     )
     _DESCRIPTION_STR_ = QT_TRANSLATE_NOOP(
         "PercentOfAverage",
-        """Percent of Average referential of the money.<br />
+        """Another relative referential of the money.<br />
                                           Percent of Average value PoA is calculated by dividing the quantitative value Q by the average<br />
                                            then multiply by one hundred.<br />
-                                          This referential is relative and more reliable to display prices and accounts, when UD is two low.<br />
+                                          This referential is relative and can be used to display prices and accounts, when UD growth is too slow.<br />
                                           No money creation or destruction is apparent here and every account tend to<br />
-                                           the average.
+                                           the 100%.
                                           """,
     )
 
diff --git a/src/sakia/money/quant_zerosum.py b/src/sakia/money/quant_zerosum.py
index 33eb08416ec39b044058942692a761db7c460673..e20f53269a0afc47e922764d0fd14c78c840bb1c 100644
--- a/src/sakia/money/quant_zerosum.py
+++ b/src/sakia/money/quant_zerosum.py
@@ -11,15 +11,14 @@ class QuantitativeZSum(BaseReferential):
     _UNITS_STR_ = QT_TRANSLATE_NOOP("QuantitativeZSum", "Q0")
     _FORMULA_STR_ = QT_TRANSLATE_NOOP(
         "QuantitativeZSum",
-        """Q0 = Q - ( M(t-1) / N(t) )
+        """Q0 = Q - ( M(t-1) / N )
                                         <br >
                                         <table>
                                         <tr><td>Q0</td><td>Quantitative value at zero sum</td></tr>
                                         <tr><td>Q</td><td>Quantitative value</td></tr>
                                         <tr><td>M</td><td>Monetary mass</td></tr>
                                         <tr><td>N</td><td>Members count</td></tr>
-                                        <tr><td>t</td><td>Last UD time</td></tr>
-                                        <tr><td>t-1</td><td>Penultimate UD time</td></tr>
+                                        <tr><td>t-1</td><td>Previous UD time</td></tr>
                                         </table>""",
     )
     _DESCRIPTION_STR_ = QT_TRANSLATE_NOOP(
diff --git a/src/sakia/money/relative_zerosum.py b/src/sakia/money/relative_zerosum.py
index 82748a9b5ced096d215ffb1059adae1ecce2ebac..466f6f77f6a946028e33c78380f26f9fefbe847b 100644
--- a/src/sakia/money/relative_zerosum.py
+++ b/src/sakia/money/relative_zerosum.py
@@ -11,7 +11,7 @@ class RelativeZSum(BaseReferential):
     _UNITS_STR_ = QT_TRANSLATE_NOOP("RelativeZSum", "R0 UD")
     _FORMULA_STR_ = QT_TRANSLATE_NOOP(
         "RelativeZSum",
-        """R0 = (Q / UD(t)) - (( M(t-1) / N(t) ) / UD(t))
+        """R0 = (Q / UD(t)) - (( M(t-1) / N ) / UD(t))
                                         <br >
                                         <table>
                                         <tr><td>R0</td><td>Relative value at zero sum</td></tr>