Media & Utilities
Percentage Calculator
Solve percentage questions quickly: find percent of a number, reverse percentages, and calculate gains or losses.
Handy for finance, discounts, analytics, and classroom drills. All calculations happen instantly as you type.
Scenarios solved0/3
ModePercent, reverse, change
Inputs active0
What is% of?
is what percent of?
What is the percentage change fromto?
How to Use the Percentage Calculator
Calculate Percentage of a Number
Enter a percentage and a number to find what that percentage of the number is. For example, 20% of 100 = 20.
Find What Percentage
Enter two numbers to find what percentage the first number is of the second. For example, 20 is what % of 100 = 20%.
Percentage Change
Enter an original value and a new value to calculate the percentage change between them.
Common Percentage Calculations
- 💰 Sales Tax: Calculate tax on purchases
- 📈 Investment Returns: Find percentage gains or losses
- 🏆 Grade Calculations: Convert scores to percentages
- 💡 Tip Calculations: Calculate restaurant tips
- 📊 Data Analysis: Compare proportions and ratios
- 🏠 Mortgage Calculations: Interest rates and payments
Percentage Formula Reference
Percentage of a Number
(Percentage ÷ 100) × NumberExample: (20 ÷ 100) × 100 = 20
What Percentage
(Part ÷ Whole) × 100Example: (20 ÷ 100) × 100 = 20%
Percentage Change
((New - Old) ÷ Old) × 100Example: ((150 - 100) ÷ 100) × 100 = 50%
Percentage Increase
((New - Old) ÷ Old) × 100Positive result indicates increase