Chloe invests £7500 for 4 years in a savings account. She gets 1% per annum compound interest in the first year, then x% x\%\,x% for 3 years.
Chloe has £8570.10 at the end of 4 years, work out the value of xxx.
208 exam-style questions on OCR GCSE Maths Repeated Percentage Change. Each one has a worked solution and a mark scheme showing where the marks go.