Percentage change 1 (Edexcel GCSE Maths): Flashcards

Direct calculation and using multipliers

Calculate % of amount, then add/subtract from original

Using multipliers

$(100 + \text{percentage}) \div 100$

$(100 - \text{percentage}) \div 100$

$1.3$

2 decimal places

$\frac{\text{Change}}{\text{Original}} \times 100$

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