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Percentage Calculator
Calculate percentages three ways: find X% of Y, what percent X is of Y, and percentage change between two numbers. Fast & free.
Result
30
Quick Reference: X% of 200
How to Use the Percentage Calculator
Enter your values above for an instant result. This tool uses verified formulas and is optimised for users in USA, Canada, UK, Australia, Europe. All calculations happen in your browser — your data is never sent to our servers.
Frequently Asked Questions
How do I calculate percentage?
To find X% of Y: multiply Y × (X/100). To find what % X is of Y: (X/Y) × 100. Example: 15% of 200 = 30.