Hello,


I have a question about the invoice.
I would like to change de sub-total incl. tax to subtotal excl. tax
then when the group discount wil be subtracted the sub-total must be recalculeted.

please help!

current invoice:
Sub-Total incl. TAX: €75.34
Shipping: €0.00
group discount: -€7.53
TAX low 6 %: €2.67
TAX High 19 %: €3.29
Total: €67.81

future invoice:
Sub-Total excl. TAX: €69.38
Shipping: €0.00
group discount: -€7.53
Total excl. TAX: €61.85
TAX low 6 %: €2.67
TAX High 19 %: €3.29
Total incl. TAX: €67.81