Percentage Calculator
One pair of numbers per line, e.g. 25,200 - percentage, change rate, increase and decrease in batch
Mode:
Decimals:
Formula:
Separator:
Calculation Result
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| No. | Value A | Value B | Result | Expression |
|---|
Introduction to the tool and how to use it
Work out the usual percentage questions from two numbers, with as many rows as you like in one go.
How to use:
1. Enter one pair of numbers per line, separated by a comma or space, e.g.
2. Pick a mode (what percent, percent of, change rate, increase, decrease);
3. Hit Run and the table shows both the formula and the result - copy it or export it as CSV.
Change-rate mode marks up, down or flat; rows with only one number or a zero divisor are skipped with a notice.
How to use:
1. Enter one pair of numbers per line, separated by a comma or space, e.g.
25,200;2. Pick a mode (what percent, percent of, change rate, increase, decrease);
3. Hit Run and the table shows both the formula and the result - copy it or export it as CSV.
Change-rate mode marks up, down or flat; rows with only one number or a zero divisor are skipped with a notice.
Percent math
Percentage conversion for 100 and 25
The three most common questions answered at once: share, percentage of a value, and change rate.
- What percent is 25 of 100?25%
- What is 100% of 25?25
- Change rate from 100 to 25-75%
Three common questions
| Question | Result | Formula |
|---|---|---|
| What percent is 25 of 100? | 25% | 25 ÷ 100 × 100 = 25% |
| What is 100% of 25? | 25 | 100 × 25% = 25 |
| Change rate from 100 to 25 | -75% | (25 − 100) ÷ 100 × 100 = -75% |
- Results are rounded to 2 decimals; open the tool for more decimals or batch calculation.
Common inputs
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