Lottie buys a pack of 45 cans of lemonade. She pays £16 for the cans.
Lottie sells 27 of the cans for 70p each. She sells the remaining cans for 30p each.
Work out Lottie's percentage profit. Give your answer correct to three significant figures.
222 exam-style questions on OCR GCSE Maths Percentage Change. Each one has a worked solution and a mark scheme showing where the marks go.