@@ -40,5 +40,5 @@ def donation_income(context, invoice):
elif line.product.category.name == "T-Shirt":
rbi.append(line.total_price * fsa_rate)
donation = (invoice.value - sum(rbi))
donation = max(Decimal('0'), (invoice.value - sum(rbi)))
return donation.quantize(Decimal('.01'))