diff --git a/counter/templates/counter/invoices_call.jinja b/counter/templates/counter/invoices_call.jinja
index 973021fb..bdc43d31 100644
--- a/counter/templates/counter/invoices_call.jinja
+++ b/counter/templates/counter/invoices_call.jinja
@@ -27,7 +27,7 @@
       {% for i in sums %}
         <tr>
           <td>{{ i['club__name'] }}</td>
-          <td>{{ i['selling_sum'] }} €</td>
+          <td>{{"%.2f"|format(i['selling_sum'])}} €</td>
         </tr>
       {% endfor %}
     </tbody>
@@ -35,4 +35,3 @@
 {% endblock %}
 
 
-
diff --git a/counter/views/invoice.py b/counter/views/invoice.py
index cabbccdb..34e97a40 100644
--- a/counter/views/invoice.py
+++ b/counter/views/invoice.py
@@ -46,30 +46,23 @@ class InvoiceCallView(CounterAdminTabsMixin, CounterAdminMixin, TemplateView):
         )
         from django.db.models import Case, Sum, When
 
-        kwargs["sum_cb"] = sum(
-            [
-                r.amount
-                for r in Refilling.objects.filter(
-                    payment_method="CARD",
-                    is_validated=True,
-                    date__gte=start_date,
-                    date__lte=end_date,
-                )
-            ]
-        )
-        kwargs["sum_cb"] += sum(
-            [
-                s.quantity * s.unit_price
-                for s in Selling.objects.filter(
-                    payment_method="CARD",
-                    is_validated=True,
-                    date__gte=start_date,
-                    date__lte=end_date,
-                )
-            ]
-        )
+        kwargs["sum_cb"] = Refilling.objects.filter(
+            payment_method="CARD",
+            is_validated=True,
+            date__gte=start_date,
+            date__lte=end_date,
+        ).aggregate(amount=Sum(F("amount"), default=0))["amount"]
+
+        kwargs["sum_cb"] += Selling.objects.filter(
+            payment_method="CARD",
+            is_validated=True,
+            date__gte=start_date,
+            date__lte=end_date,
+        ).aggregate(amount=Sum(F("quantity") * F("unit_price"), default=0))["amount"]
+
         kwargs["start_date"] = start_date
-        kwargs["sums"] = (
+
+        kwargs["sums"] = list(
             Selling.objects.values("club__name")
             .annotate(
                 selling_sum=Sum(