Percentage Change Calculator
Calculate the starting value, final value, and percentage change directly in your browser. Increases, decreases, and reverse calculations work without switching modes.
Starting value, final value, and change
Edit any two fields. The third is calculated automatically.
The two most recently edited fields remain inputs.
Enter any two of the three values.
Swap is only available when starting and final values are greater than 0.
Change
- Direction
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- Signed percentage change
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- Percentage change magnitude
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- Absolute change
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- Absolute change magnitude
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Ratio and reverse change
- Change factor
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- Final value relative to starting value
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- 1% of the starting value
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- Reverse change to starting value
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How it works
How it works
Step by step
Features
Features
Change, start value, and final value
Calculate percentage increases, decreases, and reverse calculations from any two known values.
Immediate calculation steps
The calculator shows formula and values as soon as the input is unambiguous.
Frequently asked questions
Frequently asked questions
Does it also handle decreases?
Yes. Negative percentages and smaller final values are shown as decreases.
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