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 Edexcel IGCSE Maths Percentage Change with exam-style questions for IGCSE Maths. 14 questions, matched to the Edexcel IGCSE Maths (4MA1) specification and written in Paper 1 and Paper 2 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.