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GCSE Mathematics · key term
The value after the stated change has taken place.
Used by Edexcel
Specification R9 · Paper 1, Paper 2, Paper 3
Revise: Percentage Change and Original Value ProblemsSometimes the final value and the percentage change are known, but the starting value is missing. This is a reverse percentage problem.
For an original-value problem, divide the final value by the multiplier. Do not apply the opposite percentage change to the final value.
Check whether the answer is sensible: after a decrease, the original value must be greater than the final value; after an increase, it must be smaller.
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