Percentage Increase Calculator

How much did something grow, in percent? Enter the starting value and the new value.

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Percentage increase

Formula: (new - old) / old x 100

How to use

  1. Enter the old value and the new value.
  2. Read the percentage increase (a negative result means a decrease).

Examples

Price went from 80 to 92
Output: +15%. Formula: (92 - 80) / 80 x 100.

Frequently asked questions

Increase vs difference?

Increase is measured relative to the starting value; percentage difference is relative to the average of both values. Use increase for growth over time.

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