diff --git a/product/ERP5/Document/Movement.py b/product/ERP5/Document/Movement.py index b5a62e5829e3c3c38b6846b971100c939519c5f2..a99cd137fb009a29541a73ec87361afefa913283 100644 --- a/product/ERP5/Document/Movement.py +++ b/product/ERP5/Document/Movement.py @@ -761,7 +761,8 @@ class Movement(XMLObject, Amount): """ quantity = 0 if kw.has_key('source_debit') and kw.has_key('source_credit'): - quantity += (kw.pop('source_credit') or 0 - kw.pop('source_debit') or 0) + quantity += ((kw.pop('source_credit') or 0) - + (kw.pop('source_debit') or 0)) kw['quantity'] = quantity if kw.has_key('destination_debit') and kw.has_key('destination_credit'): quantity += (kw.pop('destination_debit') or 0 -