diff --git a/src/cutecoin/core/account.py b/src/cutecoin/core/account.py
index 7ba205acc8397ca894c3f87e87dd7693cd7ba159..77fed99695ecdd3944b5c2537b6b5fa89874ed7d 100644
--- a/src/cutecoin/core/account.py
+++ b/src/cutecoin/core/account.py
@@ -24,6 +24,7 @@ from ..tools.exceptions import ContactAlreadyExists
 from ..core.net.api import bma as qtbma
 from ..core.net.api.bma import PROTOCOL_VERSION
 
+
 def quantitative(units, community):
     """
     Return quantitative value of units
@@ -43,21 +44,7 @@ def relative(units, community):
     :param cutecoin.core.community.Community community: Community instance
     :return: float
     """
-    # calculate ud(t+1)
-    ud_block = community.get_ud_block()
-    if ud_block:
-        ud = math.ceil(
-            max(community.dividend(),
-                float(0) if ud_block['membersCount'] == 0 else
-                community.parameters['c'] * community.monetary_mass / ud_block['membersCount']))
-
-        if ud == 0:
-            return float(0)
-        else:
-            relative_value = units / float(ud)
-            return relative_value
-    else:
-        return float(0)
+    return units / float(community.dividend)
 
 
 def quantitative_zerosum(units, community):
@@ -68,8 +55,11 @@ def quantitative_zerosum(units, community):
     :param cutecoin.core.community.Community community: Community instance
     :return: int
     """
-    # fixme: the value "community.nb_members" is not up to date, luckyly the good value is in "community.get_ud_block()['membersCount']"
-    average = community.monetary_mass / community.get_ud_block()['membersCount']
+    ud_block = community.get_ud_block()
+    if ud_block and ud_block['membersCount'] > 0:
+        average = community.monetary_mass / ud_block['membersCount']
+    else:
+        average = 0
     return units - average
 
 
@@ -81,15 +71,13 @@ def relative_zerosum(units, community):
     :param cutecoin.core.community.Community community: Community instance
     :return: float
     """
-    # fixme: the value "community.nb_members" is not up to date, luckyly the good value is in "community.get_ud_block()['membersCount']"
-    median = community.monetary_mass / community.nb_members
-    # calculate ud(t+1)
-    ud = math.ceil(
-        max(community.dividend,
-            community.parameters['c'] * community.monetary_mass / community.get_ud_block()['membersCount'])
-    )
-    relative_value = units / float(ud)
-    relative_median = median / ud
+    ud_block = community.get_ud_block()
+    if ud_block and ud_block['membersCount'] > 0:
+        median = community.monetary_mass / ud_block['membersCount']
+        relative_value = units / float(community.dividend)
+        relative_median = median / community.dividend
+    else:
+        relative_median = 0
     return relative_value - relative_median
 
 
diff --git a/src/cutecoin/core/community.py b/src/cutecoin/core/community.py
index 367a97e2d06c6d44042166d0c154445821ee5b34..089a23bfb8b8fc62f7ad7776834bcbaae2320499 100644
--- a/src/cutecoin/core/community.py
+++ b/src/cutecoin/core/community.py
@@ -119,7 +119,7 @@ class Community(QObject):
         u = ord('\u24B6') + ord(letter) - ord('A')
         return chr(u)
 
-    #@property
+    @property
     def dividend(self):
         """
         Get the last generated community universal dividend.
@@ -147,7 +147,7 @@ class Community(QObject):
         if block:
             return math.ceil(
                 max(
-                    self.dividend(),
+                    self.dividend,
                     float(0) if block['membersCount'] == 0 else
                     self.parameters['c'] * block['monetaryMass'] / block['membersCount']
                 )
diff --git a/src/cutecoin/gui/informations_tab.py b/src/cutecoin/gui/informations_tab.py
index 163306776dbc6bea73e8677e7512fc0de85d2dad..efe63126feb738457d628de72a1f5d4338c294ff 100644
--- a/src/cutecoin/gui/informations_tab.py
+++ b/src/cutecoin/gui/informations_tab.py
@@ -150,8 +150,8 @@ class InformationsTabWidget(QWidget, Ui_InformationsTabWidget):
                     localized_mass_minus_1_per_member,
                     self.tr('Monetary Mass per member M(t-1)/N(t) in'),
                     self.get_referential_diff_name(),
-                    float(0) if block_ud_minus_1['membersCount'] == 0 else
-                    block_ud['dividend'] / (block_ud_minus_1['monetaryMass'] / block_ud_minus_1['membersCount']),
+                    float(0) if block_ud['membersCount'] == 0 else
+                    block_ud['dividend'] / (block_ud_minus_1['monetaryMass'] / block_ud['membersCount']),
 
                     params['dt'] / 86400,
                     self.tr('Actual growth c = UD(t)/[M(t-1)/N(t)]'),
diff --git a/src/cutecoin/gui/transfer.py b/src/cutecoin/gui/transfer.py
index 4b0ce6dc8c7a6b0a487a46a29b8545a1afc6401a..eb3a8cbdf54ff0925ae4145a9f55945b3c233860 100644
--- a/src/cutecoin/gui/transfer.py
+++ b/src/cutecoin/gui/transfer.py
@@ -35,7 +35,7 @@ class TransferMoneyDialog(QDialog, Ui_TransferMoneyDialog):
         self.wallet = None
         self.community = self.account.communities[0]
         self.wallet = self.account.wallets[0]
-        self.dividend = self.community.dividend()
+        self.dividend = self.community.dividend
 
         regexp = QRegExp('^([ a-zA-Z0-9-_:/;*?\[\]\(\)\\\?!^+=@&~#{}|<>%.]{0,255})$')
         validator = QRegExpValidator(regexp)
@@ -121,7 +121,7 @@ class TransferMoneyDialog(QDialog, Ui_TransferMoneyDialog):
 
     def change_current_community(self, index):
         self.community = self.account.communities[index]
-        self.dividend = self.community.dividend()
+        self.dividend = self.community.dividend
         amount = self.wallet.value(self.community)
         ref_amount = self.account.units_to_ref(amount, self.community)
         ref_name = self.account.ref_name(self.community.currency)