# Calculate a Percentage of an Amount using a Multiplier

In this worksheet, students will calculate the percentage of an amount using a multiplier.

Key stage:  KS 3

Curriculum topic:   Number

Curriculum subtopic:   Define, Interpret and Compare Percentages

Difficulty level:

#### Worksheet Overview

This activity is about calculating a percentage of an amount using a multiplier.

We are using a calculator for this activity!

We can calculate standard percentages easily without a calculator.

When they get a little more tricky, like 42.5%, it is easier and quicker to use a multiplier and a calculator!

What do we mean by 'the multiplier'?

Well, we know that 23% = 23/100 = 0.23

The multiplier is basically, the decimal!

Let's look at a question.

Example

Calculate 17% of £56

To find 17% it is 17/100 = 17 ÷ 100 =  0.17 as a decimal

£56 x 0.17 = £9.52

Top tip: Remember that when we are working with money, we should round our answer to two decimal places.

Let's try some questions now.

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