I use Magento and I have a problem displaying totals.
At the moment I have this:
Subtotal: £10.00 Shipping & Handling: £5.00 Tax (at the moment just using 20% of Subtotal) (20%):£2.00 Grand Total: £17.00
So it should look like this:
Subtotal: £10.00 Shipping & Handling: £5.00 Tax (need it to be 20% of subtotal AND 20% of shipping & Handling) (20%):£3.00 Grand Total: £18.00
As you can see, the tax went from £ 2.00 to £ 3.00, because I need it to accept 20% of the shipping and handling fees, as well as 20% of the amount of the interim installment?
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