I am starting a shop from Pakistan and here we have different shipping rates for every country. This is very annoying because i have to go throw every country at a time and set values for every kg. Also the fear is that the shipping rates might change.
I was wondering if there is a way to assign a function, for example:
Price = (First kg price)+(Kgprice)(amount of kg´s bought) or simplified P(kg)=w1+w2*x
If not, is there a solution for those who have to have different rates for every country ??