Calculate percentages easily for discounts, increases, decreases, and more with our professional percentage calculator
Learn about different percentage calculations and the formulas used
Formula: (X ÷ Y) × 100
To find what percentage X is of Y, divide X by Y and multiply by 100.
Example: What is 25 of 200?
(25 ÷ 200) × 100 = 12.5%
Formula: (X ÷ 100) × Y
To find X% of Y, divide X by 100 and multiply by Y.
Example: What is 15% of 300?
(15 ÷ 100) × 300 = 45
Formula: Y + (Y × (X ÷ 100))
To increase Y by X%, multiply Y by X divided by 100, then add to Y.
Example: Increase 200 by 10%
200 + (200 × (10 ÷ 100)) = 220
Formula: Y - (Y × (X ÷ 100))
To decrease Y by X%, multiply Y by X divided by 100, then subtract from Y.
Example: Decrease 200 by 10%
200 - (200 × (10 ÷ 100)) = 180
Discover how percentage calculations are used in everyday life
Calculate discounts during sales to know exactly how much you're saving. For example, a 20% discount on a ₹1000 item saves you ₹200.
Track investment growth or interest rates. A 5% annual return on ₹10,000 means ₹500 profit in a year.
Convert test scores to percentages. Scoring 45 out of 50 marks equals 90%.
Calculate daily nutrient percentages. If a food has 5g protein and your daily need is 50g, that's 10% of your daily intake.
Answers to common questions about percentage calculations
In mathematics, percentage refers to a number expressed as a fraction of 100. It's used to describe proportions, comparisons, and changes. For example, 25% means 25 out of 100.
To calculate percentage, divide the part by the total and multiply the result by 100. For example, (45 ÷ 60) × 100 = 75%. This method is widely used in academics, finance, and daily life.
You can calculate percentage in Excel using the formula =A1/B1*100, where A1 is the part and B1 is the total. Format the result cell as a percentage to display it properly.
Use the formula ((New - Old) ÷ Old) × 100 to find percentage increase or decrease. For example, if a price rises from ₹200 to ₹250, the increase is ((250-200)/200)*100 = 25%.
Yes! This percentage calculator is perfect for finding discounts, sale prices, and offers. Just enter the original amount and the discount percentage to know the final price instantly.
Absolutely. Our percentage calculator handles decimals and large numbers, making it suitable for everything from exam scores to tax and profit calculations.
Yes, this tool is completely free, easy to use, and works on mobile, tablet, and desktop — no login required!
The term percentage represents a number or ratio expressed as a fraction of 100. It is widely used in finance, academics, statistics, shopping, and everyday life to compare values, show proportions, and analyze growth or change.
To find what percentage one number is of another, divide the first number by the second and multiply by 100. For example, (25 ÷ 200) × 100 = 12.5%.
Yes, our percentage calculator supports decimal numbers, large figures, and precise calculations. It ensures accuracy in everything from exam scores to budget analysis.
Percentages are used in school grades, shopping discounts, bank interest rates, health statistics, and more. Learning how to calculate percentage helps in solving daily problems and making informed decisions.