Percentage Increase: Step-by-Step Example
27 October 2026
Percentage increase questions are common in 11+ maths. To help your child, it's useful to break the process into simple steps and use clear examples they can relate to.
Worked example
A toy costs £50. Its price increases by 20%. What is the new price?
Step 1: Find 20% of £50.
20% means 20 out of 100. So, 20 ÷ 100 = 0.2.
Now, 0.2 × 50 = £10.
Step 2: Add this increase to the original price.
£50 + £10 = £60.
The new price is £60.
After seeing this example, your child should be able to spot when a question is about percentage increase and know how to work out the new amount. The next step is to try similar questions for practice and build confidence.
