Percent Change Calculator
Find the percentage change between an old value and a new value.
Increase
25%
- Difference
- 20
Show the work
Difference
new − old
100 − 80 = 20
Divide by the old value, times 100
change = (new − old) ÷ |old| × 100
20 ÷ 80 × 100 = 25%
How it works
Percent change = (new − old) ÷ |old| × 100
Questions
- How does the percent change calculator work?
- Percent change = (new − old) ÷ |old| × 100.
- What do I need to enter?
- Old value, New value. Optional fields can be left blank.
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