James buys 3 kg of trail mix. He pays £16.00 for the trail mix.
James puts the trail mix into small boxes. He puts 200g of trail mix in each box. He sells each box for £1.40.
Work out James'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.