Percentage Increase & Decrease — Free KS3 Worksheet

A free, printable KS3 worksheet on percentage increase and decrease without a calculator, with a full worked answer key. 16 questions graded easy to hard for Years 7, 8 and 9, including sale prices and word problems.

Practise percentage increase and decrease without a calculator. It is two steps: find the percentage of the amount using the 10% method, then add it on to increase or take it off to decrease. The questions build from simple increases and decreases up to sale prices, pay rises and tips, and every one comes with a full worked answer so you can mark it together.