PERCENTAGES 1

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Percentage means parts of 100.

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To change a fraction or decimal to a percentage, multiply by 100.

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Example

Write a b as percentages.

a

b

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To change a percentage to a fraction or a decimal, divide by 100.

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Example

Write a 52% as a fraction b 16.5% as a decimal.

a

b

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This diagram might help you to remember how to convert

between decimals, fractions and percentages.

decimal

or fraction

percentage

× 100

÷ 100

Examples

1

Raju sells computers.

Last year he sold computers worth $124 580.

How much commission did he earn?

Examples

2

What would be the new wage of someone who presently earns $650 a week?

Quicker method:

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Examples

3

The marked price on a calculator is $15.75.

Calculate the sale price of the calculator.

Quicker method:

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Examples

4

A car is priced at $5995.

Helen pays cash for the car and receives a 4% cash discount.

How much does she pay?

Quicker method:

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