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📉 Percentage Difference

Calculate the absolute change and percent change from one value to another.

Percentage Difference Calculator

Calculate the percentage change between two values. Enter the original value and the new value to see the absolute difference and the percent change.

Original

New

Change30

Percent change25.00%

Positive percentages represent increases, negative values indicate decreases.
If the original value is zero, percent change defaults to 0—consider using absolute change in that case.
Combine with the Percentage Calculator to sanity-check downstream calculations.

Why does the percent change show 0 when the original is 0?: Mathematically the change is undefined. The tool returns 0 to avoid infinite results—use context to interpret it.
Can I enter negative numbers?: Yes. Negative inputs work for scenarios like credit balances or below-zero temperature comparisons.
How do I format the export?: The download provides a plain text summary you can attach to notes or paste into spreadsheets.

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