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Percentage

Find a percentage of a number and the increased or reduced value.

How this works

Percentage amount = starting value × percentage ÷ 100.

Example

Using the example inputs, percentage amount is 37.5.

Starting value
250
Percentage
15 %
Percentage amount
37.5

Scope and assumptions

Simple percentage arithmetic only. An increase followed by the same percentage decrease does not restore the original amount; the percentage base changes.

OpenStax mathematics

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