Review pages: • Fractions • Cancelling • Multiplying • Percentages • Ratio   Test page: • Test yourself

Percentages Percentage means out of 100 and is written as %. 10%  means   To work out 10% of a number, divide by 10.   Example 1 Look at the label. How much does the shirt cost now? 10% of £30 = 30 ÷ 10 = £3. The price of the shirt is reduced by £3. £30 - £3 = £27. The price of the shirt is now £27.   Example 2 How much does the jumper cost now? 10% of £20 = 20 ÷ 10 = £2. 40% is four times as much as 10%. 40% of £20 = 2 x 4 = £8. The price of the jumper is reduced by £8. The price of the jumper is now £12.   Try one! How much does the cap cost now? Answer: £