Loading please wait

The smart way to improve grades

Comprehensive & curriculum aligned

Try an activity or get started for free

Calculate Percentage Change Problems

In this worksheet, students will solve real life problems using percentages. A calculator will be used.

'Calculate Percentage Change Problems' worksheet

Key stage:  KS 3

Year:  Year 8 Maths worksheets

Curriculum topic:   Number

Curriculum subtopic:   Define, Interpret and Compare Percentages

Difficulty level:  

Worksheet Overview

This activity is about using the knowledge we have of percentages to answer real world problems.

You will need a calculator for this.


Percentages are used a lot in our everyday life. From discounts in shop sales to interest in a bank and everything in between!

Let's look at an example of this before we try some questions.


boy thinking



Cereal is sold in boxes of 350 g

This week only, the boxes have been increased to fit an extra 12% free in there.

What is the weight of the special offer boxes?



An extra 12% means a 12% increase = 112% = 1.12

350 x 1.12 = 392 g


girl eating cereal


Let's try a mixture of questions now.


Remember that if the question is about money,  give your answer to 2 decimal places - that is pounds and pence - unless it is a whole number.


Let's get started.

What is EdPlace?

We're your National Curriculum aligned online education content provider helping each child succeed in English, maths and science from year 1 to GCSE. With an EdPlace account you’ll be able to track and measure progress, helping each child achieve their best. We build confidence and attainment by personalising each child’s learning at a level that suits them.

Get started

Try an activity or get started for free