Hi, when a customer buys something of say €40,00, and he chooses to pay with iDeal (dutch payment system) an extra fee of €2,00 will be added, so the total amount of the order is €42,00. now virtuemart has to calculate 19% tax over this, which is €7,98, which is also calculated so nothing wrong until now.
but when I change the fee in the order-administration, to let's say €5,00 (for example because I had some extra costs which have to be calculated with this order) the total order value now is €45,00 so the tax should be (19%) €8,55. however, now the tax is changed to €6,39 which is only the tax of the products (19/119 * 40).
so first the tax is calculated over the total value of the order (productprice+fee) but after changing something to the fee, the tax is only calculated over the productprice and not over the fee anymore.
the same problems occur when I add some discount instead of a fee, after changing he just only calculates the tax of the products while instantly also the fee/discount is counted in.
is this a bug in virtuemart or am I doing something wrong?