Percentage Calculator
Calculate percentages: What is X% of Y? A is what percent of B? Percentage change from A to B.
% of ?
Result:
Other calculations:
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What does the Percentage Calculator do?
Calculates three common percentage operations: (1) What is X% of Y? (2) A is what percent of B? (3) Percentage change from A to B.
What is it used for?
- Discounts: 20% off $50 = $10 off
- Tax/tips: Add 10% to a bill
- Growth: Revenue went from 100 to 150 = 50% increase
- Grades: 45 out of 60 = 75%
How it works
Enter values in the fields. Results update automatically. Percentage change = (new − old) / old × 100.