1. Grade 11 Week 5
Percentages

2. Recap: You should already know how to:
✓ recognise and use common equivalent fractions and decimals
✓ read, write and understand decimals and fractions
✓ recognise equivalences between common fractions, percentages and decimals

3. Starter: Recap on Fractions

4. Today’s objectives: By the end of this section you will know how to:
calculate percentages of quantities or measures
express one quantity as a percentage of another.
calculate percentage increases and decreases
Calculate VAT, Simple and Compound Interest, Depreciation

5. What is a Percent? A percentage is the number of parts per hundred
For e.g. 2% is 2 parts per hundred.

6. What does this grid show?
Blue-
Red-
Yellow-
Green-
White-

7. The 10 % Percent Rule A percentage is the number of parts per hundred
For e.g. 2% is 2 parts per hundred.