Shipping based on area and quantity
I am trying to do a calculation in Cart 6.1 in relation to a shipping.
I have a attached a freight pricing sheet based on the following.
1. The freight is charge per ever 5 boxes and or items.
Freight per one 1-5 items is the same
up to 10 boxes (items) = $6.83
up to 10 boxes (items) = $13.65
up to 20 boxes (items) = $20.48
I have a freight in the database that reflect the charge as user_states which has all the charges in it.
as "charge1, charge2, charge3 charge4" etc.
How can I get the cart to reflect this freight price?