Does anyone know how i can do the following:
When a user orders multiple items, the shipping costs are added together depending on the number of items.
e.g. if a user order one CD, they are charged £5. If a user orders 2 CD's, they are charged £2.50 for the additional item. So the final shipping cost is £7.50.
When i use the table rate, the first item is £5 but when i add another item, it drops to £2.50.
I need it to add all the costs together, so three items will be £10, (£5 + £2.50 + £2.50).



