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12 cards from this deck
Direct calculation and using multipliers
Calculate % of amount, then add/subtract from original
Using multipliers
(100+percentage)÷100(100 + \text{percentage}) \div 100(100+percentage)÷100
(100−percentage)÷100(100 - \text{percentage}) \div 100(100−percentage)÷100
1.31.31.3
2 decimal places
ChangeOriginal×100\frac{\text{Change}}{\text{Original}} \times 100OriginalChange×100
Work out the amount of increase or decrease
Calculate multiplier once for multiple values
Small % change should give small change in amount
Can earn partial marks if final answer is wrong
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