diff --git a/res/i18n/ts/fr_FR.ts b/res/i18n/ts/fr_FR.ts
index 15f90e31caef5e0568c102877f9d7ab8620dc9e3..f74627f3fa5a5aaef97f2f5ceab13da6552865db 100644
--- a/res/i18n/ts/fr_FR.ts
+++ b/res/i18n/ts/fr_FR.ts
@@ -887,7 +887,7 @@ Revoking your UID can only success if it is not already validated by the network
     <message>
         <location filename="../../../src/cutecoin/gui/informations_tab.py" line="72"/>
         <source>Actual growth c = UD(t)/[M(t-1)/N(t)]</source>
-        <translation>Croissance actuelle c = DU(t)/[M(t -1)/N(t)]</translation>
+        <translation type="obsolete">Croissance actuelle c = DU(t)/[M(t -1)/N(t)]</translation>
     </message>
     <message>
         <location filename="../../../src/cutecoin/gui/informations_tab.py" line="72"/>
@@ -1071,6 +1071,11 @@ Revoking your UID can only success if it is not already validated by the network
         <source>UD(t+1) = MAX { UD(t) ; c * M(t) / N(t+1) }</source>
         <translation type="obsolete">DU(t+1) = MAX { DU(t) ; c * M(t) / N(t+1) }</translation>
     </message>
+    <message>
+        <location filename="../../../src/cutecoin/gui/informations_tab.py" line="72"/>
+        <source>Actual growth c = UD(t)/[M(t-1)/N(t-1)]</source>
+        <translation type="unfinished">Croissance actuelle c = DU(t)/[M(t -1)/N(t-1)]</translation>
+    </message>
 </context>
 <context>
     <name>MainWindow</name>
diff --git a/src/cutecoin/gui/informations_tab.py b/src/cutecoin/gui/informations_tab.py
index 93db5e17fbb334ae257fa4db4d88a2b68e545e55..14d42f3de9a1bc941ae94e33ac4c19edb2d102cd 100644
--- a/src/cutecoin/gui/informations_tab.py
+++ b/src/cutecoin/gui/informations_tab.py
@@ -91,9 +91,9 @@ class InformationsTabWidget(QWidget, Ui_InformationsTabWidget):
                     localized_mass_per_member,
                     self.tr('Monetary Mass per member M(t)/N(t) in'),
                     self.get_referential_diff_name(),
-                    block['dividend'] / (block_t_minus_1['monetaryMass'] / block['membersCount']),
+                    block['dividend'] / (block_t_minus_1['monetaryMass'] / block_t_minus_1['membersCount']),
                     params['dt'] / 86400,
-                    self.tr('Actual growth c = UD(t)/[M(t-1)/N(t)]'),
+                    self.tr('Actual growth c = UD(t)/[M(t-1)/N(t-1)]'),
                     QLocale.toString(
                         QLocale(),
                         QDateTime.fromTime_t(block['medianTime'] + params['dt']),