Percentage Change Calculator — between two values

Calculate percent change from an old value to a new value. Works for prices, metrics, and any two positive numbers.

Calculator

Old valueNew value

Percent change-10%

Percent change is the standard way to express movement between two observations, especially for tracked prices over time.

Formulachange% = ((to − from) ÷ from) × 100

If the old value is 0, percent change is undefined; the tool will report that case as not applicable.

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