1. PERCENTAGES 1

2. Percentage means parts of 100.

3. To change a fraction or decimal to a percentage, multiply by 100. Example Write abas percentages. a b

4. To change a percentage to a fraction or a decimal, divide by 100. Example Write a 52% as a fractionb 16.5% as a decimal. a b

5. This diagram might help you to remember how to convert between decimals, fractions and percentages. decimal or fraction percentage × 100 ÷ 100

6. 6.25% of all sales COMMISSION FOR SALESMEN: Examples 1 Raju sells computers. Last year he sold computers worth $124 580. How much commission did he earn?

7. 15% ALL WAGES TO BE INCREASED BY Examples 2 What would be the new wage of someone who presently earns $650 a week? Quicker method:

8. 24% off SALE all marked prices now Examples 3 The marked price on a calculator is $15.75. Calculate the sale price of the calculator. Quicker method:

9. 4% cash discount CARS FOR SALE! 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: