Question: how much is 25 off in pounds?
Answer: Sale Price = £13.5 (answer). This means the cost of the item to you is £13.5. You will pay £13.5 for a item with original price of £18 when discounted 25%. In this example, if you buy an item at £18 with 25% discount, you will pay 18 - 4.5 = 13.5 pounds.