i'm working on grouped products price now total price is calculated as
Total price = product(a) price x product(a) quantity + product(b) price x product() quantity
i want some change in that calculation like this
Total price = product(a) price x product(a) quantity x product(a) Carton + product(b) price x product(b) quantity x product(b) Carton
anyone can tell me where is code or how to do it