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Percentage Calculator
Calculate percentages, percentage changes, discounts and more quickly and accurately.
Percentage Calculator
Choose a calculation below and enter your numbers.
UNDERSTAND PERCENTAGES
Percentage Basics
A percentage is a number expressed as a fraction of 100. For example, 25% means 25 out of 100.
Percentages are commonly used for discounts, increases, decreases, statistics, grades, finance and everyday calculations.
COMMON CALCULATIONS
What Can You Calculate?
Percentage of a number: Find a specific percentage of any number.
Percentage of a total: Find what percentage one number represents compared with another.
Percentage increase: Find how much a value has increased as a percentage.
Percentage decrease: Find how much a value has decreased as a percentage.
Discount: Calculate the discount amount and final price.
Percentage difference: Compare two values using their average as the reference.
FORMULAS
Percentage Formulas
Percentage of a number: Percentage × Number ÷ 100
What percent is X of Y: X ÷ Y × 100
Percentage change: (New Value − Original Value) ÷ Original Value × 100
Discount amount: Original Price × Discount Percentage ÷ 100
Final price: Original Price − Discount Amount
EXAMPLES
Percentage Examples
20% of 500 = 100
25 is 50% of 50
Increasing 200 to 250 is a 25% increase.
Reducing 500 to 400 is a 20% decrease.
A 10% discount on Rs 1,000 is Rs 100, making the final price Rs 900.
REAL-WORLD USE
Where Percentages Are Used
Percentages are used in shopping discounts, business profits, tax calculations, exam scores, statistics and financial planning.
They are also useful for comparing changes in prices, sales, population, performance and other numerical measurements.
IMPORTANT
Percentage Calculator Notes
Percentage calculations depend on the reference value being used. For example, a 20% increase and a 20% decrease do not always return you to the original value.
When calculating a percentage change, the original value is normally used as the reference.
Always check whether the calculation requires a percentage of a number, percentage change, percentage difference or discount.
FAQ
Frequently Asked Questions
What is a percentage?
A percentage represents a number as a part of 100. The symbol % means "per hundred."
How do I calculate 20% of 500?
Multiply 500 by 20 and divide by 100. The result is 100.
How do I calculate percentage increase?
Subtract the original value from the new value, divide the result by the original value and multiply by 100.
How do I calculate a discount?
Calculate the discount amount from the original price and subtract it from the original price.
Can this calculator calculate percentage decrease?
Yes. Select Percentage Increase or Decrease and enter the original and new values.
Is the Percentage Calculator free?
Yes. Fashnza's Percentage Calculator is free to use.
Does this calculator store my numbers?
No account is required. Calculations are performed directly in your browser.
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