Percentage Difference Calculator
Compare two values symmetrically, using their average as the base, rather than treating one as the starting point. Enter first value and second…
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Compare two values symmetrically, using their average as the base, rather than treating one as the starting point. Enter first value and second value to see percentage difference when you calculate.
Worked example
Example calculated from the starting values. Enter your own values and press Calculate to get your result.
With the default inputs (first value = 80, second value = 100), the results are: percentage difference 22.222 %.
Quick reference: first value vs result
Reference table based on the example values; it is not your calculation result.
| First value | Percentage difference |
|---|---|
| 40 | 85.714 % |
| 80 | 22.222 % |
| 160 | 46.154 % |
| 400 | 120.000 % |
| 800 | 155.556 % |
| 1,600 | 176.471 % |
Frequently asked questions
What formula does this calculator use?
Percentage difference = abs(a-b) ÷ ((a+b) ÷ 2) × 100. Variables: a = first value, b = second value.
What do I need to enter?
You need first value, second value. Results update as you type.
What is an example result?
With the default inputs (first value = 80, second value = 100), the results are: percentage difference 22.222 %.
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