Solve any percentage: X% of Y, X is what % of Y, percent change, increase or decrease, percent difference and the price before a discount, with formulas.
Who Uses Percentage Calculator
Students working out a marks percentage when the total is not out of 100. Shoppers checking what a flat 40% off actually takes off the bill. Anyone adding GST, a service charge or a tip on top of a base amount. Salaried people checking the percentage increase an appraisal letter is really offering.
Percentage Calculator Features
- Basic Percentage: Calculate what is X% of Y - the most common percentage operation
- Reverse Percentage: Find what percentage X is of Y - great for scores, discounts, and ratios
- Increase & Decrease: Calculate percentage change between two numbers
- Instant Results: Results update in real-time as you type - no submit button needed
How to Use Percentage Calculator
Calculate percentages in three steps
- Choose Mode: Select the type of percentage calculation
- Enter Values: Type your numbers - results appear instantly
- Copy Result: Copy the answer to clipboard with one click
Frequently Asked Questions
How do I calculate X% of a number?
Divide the percentage by 100 and multiply by the number. For example, 25% of 200 = (25/100) × 200 = 50. Our calculator does this instantly.
How do I find what percentage one number is of another?
Divide the first number by the second and multiply by 100. For example, 50 is what % of 200? (50/200) × 100 = 25%.
How is percentage change calculated?
Percentage change = ((New Value - Old Value) / |Old Value|) × 100. A positive result means increase, negative means decrease.
Can I calculate percentage increase and decrease?
Yes! Use 'Increase by %' or 'Decrease by %' mode. Enter the original value and the percentage to add or subtract.
Is this percentage calculator free?
Yes, all 7 modes (X% of Y, X is what % of Y, change, increase, decrease, difference, price before a discount) with no signup. Real-time results, one-click copy, and unlimited calculations are all free.
Can I use this for exam marks percentage?
Yes! Use 'X is ?% of Y' mode - enter your obtained marks as X and total marks as Y to get your percentage.
Percentage kaise nikale?
Percentage = (Value / Total) × 100. Example: 80 marks out of 100 = (80/100) × 100 = 80%. Humara tool 5 tarike se percentage calculate karta hai - increase, decrease, change, aur reverse.
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