£50=100% so to find one percent you divide by 100 £0.5=1% if you then do how much of (£5) by one percent which is (£0.5) then you get 5 divided by 0.5 to get 10 which means kaleighs clothes are 10% off
mimick this idea for Rachels clothes and the greater the percentage, shows whos clothes had the biggest percentage discount