I will:

• Use a benchmark of 10% to calculate different percentage values.
• Divide the price by 10. The numbers shift one place to the right of the decimal point.
• Halve my benchmark of 10% to calculate what 5% is of any amount.
• Move amounts 2 places to the right of the decimal point to calculate what 1% would be.

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1. 10% of 30=
2. 20% of 16=
3. 5% of 240=
4. 15% of 120=
5. 30% of 200=
6. 25% of 84=

​

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g. 35% of 60=

h. 95% of 240=

i. 40% of 160=

j. 45% of 160=

k. 80% of 300=

m. 55% of 120=

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Show your working in your math book.

20% off

$540.00

$630.00

$150.00

Why do we have to subtract the percentage discount from the original price?

15% off

$100.00

$500.00

$480.00

$180.00

$320.00

$25.00

30% off

$100.00

$30.00

$60.00

$100.00

$44.00

$110.00

45% off

$60.00

$30.00

$20.00

$90.00

$70.00

$40.00