Percentage Change Calculator
Result
Calculated result
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Change any value to calculate instantly.
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Percentage Change Calculator — free online calculator.
Formula
(New − Original) / Original × 100
- Enter the specified values using consistent units. The calculator applies the displayed formula; input assumptions and units are stated beside each field.
- The main inputs are Original value, New value. Enter them in the units and format shown in the calculator.
- Keep comparable quantities in compatible units whenever the formula combines or compares them.
- Changing any input above recalculates the result with the same calculation engine used by this page.
Example: Percentage Change
Inputs
- Original value: 100
- New value: 120
Example inputs: Original value = 100; New value = 120. Calculated result: Percentage change (%): 20.
Sample result: Calculating…
Frequently asked questions
What does the Percentage Change calculate?
Percentage change measures the change relative to the original value.
Which values should I enter?
Enter Original value, New value using the units and format shown beside each field.
What formula does this calculator use?
The calculator uses the following relationship: (New − Original) / Original × 100.
Why might my result differ from another source?
Results can differ when another source uses different units, rounding rules, conventions or assumptions. Compare the inputs and definitions before comparing results.
Does the result update automatically?
Yes. Changing an input updates the result using the same calculation engine shown on this page.