Percentage Calculator
A rapid, multi-purpose calculator for solving everyday percentage math problems.
1. Find Percentage Value
What is% of?
2. Find Percentage Between Two Numbers
is what % of?
3. Find Percentage Change
Fromto?
Results
20% of 150 is:
30
30 is this percentage of 150:
20%
The change from 100 to 120 is a:
Increase of 20%
Values update automatically as you type.
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About this Tool & FAQ
How do you calculate percentage increase/decrease?
The formula is: ((New Value - Old Value) / Old Value) * 100