Donald buys a pack of 9 chocolate bars. The pack costs £2.50
Donald sells all 9 chocolate bars for 45p each.
Work out Donald's percentage profit.
Practise CIE IGCSE Maths Percentage Change with exam-style questions for Core and Extended tier. 14 questions, matched to the CIE IGCSE Maths (0580) specification and written in Paper 1 and Paper 3 (Core) or Paper 2 and Paper 4 (Extended) style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.