Sarah buys 2.5 kg of cookie dough. She pays £12.00 for the dough.
Sarah makes cookies from the dough. She uses 125g of dough for each cookie. She sells each cookie for 80p.
Work out Sarah's percentage profit.
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.