diff --git a/core/apps/orders/management/commands/update_party.py b/core/apps/orders/management/commands/update_party.py
index 42ae74c..1d4e3d2 100644
--- a/core/apps/orders/management/commands/update_party.py
+++ b/core/apps/orders/management/commands/update_party.py
@@ -7,6 +7,6 @@ class Command(BaseCommand):
     def handle(self, *args, **options):
         parties = Party.objects.all()
         for party in parties:
-            party.party_amount.payment_amount = party.party_amount.total_price - party.party_amount.paid_amount
+            party.party_amount.payment_amount = party.party_amount.calculated_amount - party.party_amount.paid_amount
             party.party_amount.save()
         self.stdout.write("Parties updated")
\ No newline at end of file