Percentage Change Calculator

Find the percent increase or decrease from an old value to a new one, with steps.

How to calculate percentage change

  1. Enter the original (old) value.
  2. Enter the new value.
  3. Read the percent change and whether it rose or fell.

Frequently asked questions

What is the formula for percentage change?

Percentage change = (new − old) ÷ |old| × 100. A positive result is an increase, a negative result is a decrease. For example, from 50 to 75 is (75 − 50) ÷ 50 × 100 = 50% increase.

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