Percentage Calculator
Calculate percentages, percentage increase/decrease, and more.
How does it work?
Choose a calculation type and enter your numbers. Instantly solve common percentage problems.
Choose a calculation type and enter your numbers. Instantly solve common percentage problems.
Result
Enter your values to see the result here.
Related Math Calculators
How to Calculate Percentages
- What is X% of Y?
(X / 100) × Y - X is what percent of Y?
(X / Y) × 100 - Percent increase/decrease from X to Y:
((Y - X) / X) × 100
Examples:
What is 20% of 150? → 30
30 is what percent of 150? → 20%
Percent change from 120 to 150? → 25%
Tips for Percentage Calculations
- Always double-check your numbers and decimal places.
- Percent increase is positive, percent decrease is negative.
- Use a calculator for quick and accurate results.
Frequently Asked Questions
Multiply the number by the percentage (as a decimal). For example, 20% of 150 is 0.2 × 150 = 30.
Subtract the original value from the new value, divide by the original value, and multiply by 100.
Percent is a ratio out of 100. Percentage points refer to the difference between two percentages.