Mathematics for IGCSE & O level - Percentages (Section 3 - No. 15)
When calculating percentage decrease, which statements are true?
You subtract the new value from the original.
You divide the change in value by the original value.
The result is multiplied by 100.
You should add the decrease to the original value.
Explanation
The change between values is divided by the original and multiplied by 100 to reach the result.
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