Percentage Calculator - Calculate % Increase, Decrease & More
Solve percentage problems easily. Find X% of Y, percentage change, or what percent one number is of another.
Percentage Calculator
Select a calculation mode below.
What is% of
Enter values above to see the result
5%
Quick Set
10%
Quick Set
15%
Quick Set
20%
Quick Set
Mastering Percentages
Percentages are used everywhere—from calculating tips and discounts to analyzing data and growth types. Our tool handles the three most common scenarios.
1. Percentage of a Number
"What is 20% of 150?"
Formula: (20 / 100) * 150 = 30
2. Percentage Change
"Price went from $50 to $60. What is the % increase?"
Formula: ((60 - 50) / 50) * 100 = 20%
3. What Percentage?
"10 is what percent of 50?"
Formula: (10 / 50) * 100 = 20%
Real Life Examples
- Discounts: A $80 jacket is 25% off. You save $20.
- Tips: The bill is $40. A 15% tip is $6.
- Taxes: Sales tax is 8%. On a $100 purchase, you pay $8 tax.
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