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GCSE Mathematics · key term
The amount by which a quantity has risen or fallen, measured relative to its original value and expressed as a percentage.
Used by AQA and Edexcel
Specification R9 · Paper 1, Paper 2, Paper 3
The difference between the new and original values, expressed as a percentage of the original value.
Revise: PercentagesA percentage change is measured relative to the original value.
Specification R9 · Paper 1, Paper 2, Paper 3
In an original-value problem, divide the final value by the multiplier; do not apply the opposite percentage change to the final value.
For percentage change, divide by the original value, not the new value.
For an original-value problem, divide the final value by the multiplier. Do not apply the opposite percentage change to the final value.
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A change measured relative to the original quantity and expressed per hundred.
A percentage change compares the change with the original amount.