What is X% of Y?
Percentage increase or decrease from X to Y
Percentage difference between two numbers
X is Y% of what number?
Quick & Easy Percentage Calculations
Need to calculate a percentage quickly? Our free percentage calculator handles all common percentage calculations instantly. Whether you need to find what percent one number is of another, calculate a percentage increase or decrease, or work backwards from a percentage, we’ve got you covered. Perfect for students, professionals, shoppers calculating discounts, or anyone who needs fast, accurate percentage calculations.
How to Use This Calculator
- Choose your calculation type from the tabs
- Enter your numbers in the input fields
- View your results instantly
- Use the formula display to understand the calculation
Features
- Calculate X% of any number
- Find what percent X is of Y
- Calculate percentage increase or decrease
- Reverse percentage calculations
- Show calculation steps
Frequently Asked Questions
How do I calculate percentage increase?
Percentage increase = ((New Value – Old Value) / Old Value) × 100
How do I calculate a discount?
Final Price = Original Price × (1 – Discount%/100). For 20% off $50: $50 × 0.80 = $40