➗ Percent Increase Calculator
Calculate percent increase from an old value to a new value.
Result
—
How this calculator works
Calculate percent increase from an old value to a new value.
Formula
(new-old)/old×100
Example
80 to 100 is a 25% increase.
Frequently asked questions
What does the Percent Increase Calculator do?
Calculate percent increase from an old value to a new value.
Are the results exact?
The calculator follows the displayed formula. Rounded display values may differ slightly from full-precision results.
Can I use negative or decimal values?
Most fields accept decimals and negative values when they make sense for the formula.
How should I check an important result?
Review the formula, verify your entries, and confirm high-stakes work with a qualified teacher or professional.