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Percentage Calculator
Three quick percentage helpers in one tool: find X% of Y, what % is X of Y, and percent change.
Private - runs in your browser
No signup required
Free forever
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Result
How to use Percentage Calculator
- Pick the operation.
- Enter the values.
- Result updates instantly.
Features
- Three modes in one place
- Live result
Why use it
- No mental math
- Useful for school, shopping, finance
Frequently asked questions
How is percent change calculated?
((new − old) / old) × 100. Negative means a decrease.