OSCommerce - calculate a discount on the total before taxes
Posted on 2007-11-19
I am very new at OSCommerce and can not figure out which file(s) need(s) to be modified so that a 10% discount is calculated on the total before taxes and not on the total after taxes as it is on my current install. I thought this would be an easy task and tried to locate where the calculation is done in order.php, order_total.php or the files under modules/order_total but no success. I would be extremelly grateful if someone could give me some pointers as this needs to be fixed urgently.
Thank you for any help or ideas,