Check what a sale price really comes to before you buy, whether it’s 20% off at a DIY store or a bank holiday deal.
Discount calculator
Two discounts in a row
An extra 10% off a price that’s already 20% off isn’t 30% off. Work out the first sale price, then put that into the calculator with the second discount. 20% then 10% works out to 28% off in total.