missing -

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@42701 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5/Document/BudgetCell.py

@@ -158,7 +158,7 @@ class BudgetCell(Predicate, MetaNode, Movement):
         source_debit = float(source_debit)
       except TypeError:
         source_debit = 0.0
-      self.setQuantity(source_debit)
+      self.setQuantity(-source_debit)
 
     security.declareProtected( Permissions.ModifyPortalContent,
                                'setDestinationDebit', 'setDestinationCredit' )