Percentage Calculator
A practical percentage tool for money, shopping, study and everyday decisions.
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What this tool does
Calculate percentages, changes and discounts.
How to use it
Choose a mode and enter X and Y.
How it works
The modes use X/100×Y, X/Y×100, percentage change, or Y×(1−X/100).
Important: Results are estimates; institutional rules, live prices and individual circumstances may differ.