How do I calculate a percentage of a number?

To calculate a percentage of a number, multiply the number by the percentage and divide by 100. For example, to find 15% of 200, multiply 200 by 15 and divide by 100: (200 × 15) ÷ 100 = 30.

How do I convert a percentage to a fraction?

To convert a percentage to a fraction, divide the percentage by 100 and simplify the resulting fraction. For example, 75% = 75/100 = 3/4.

How do I calculate percentage increase or decrease?

To calculate percentage increase or decrease, subtract the old value from the new value, divide by the old value, and multiply by 100. For example, if a price increased from $100 to $150, the percentage increase is: ((150 - 100) ÷ 100) × 100 = 50%.

What is the difference between percentage increase and percentage change?

Percentage increase specifically measures how much a value has grown, while percentage change can be either positive (increase) or negative (decrease). For example, a price change from $100 to $90 is a -10% change, while a change from $100 to $110 is a +10% change.

How do I calculate a percentage discount?

To calculate a percentage discount, multiply the original price by the discount percentage and subtract from the original price. For example, a 20% discount on $100 would be: $100 - ($100 × 20/100) = $100 - $20 = $80.

How do I convert a fraction to a percentage?

To convert a fraction to a percentage, divide the numerator by the denominator and multiply by 100. For example, to convert 3/4 to a percentage: (3 ÷ 4) × 100 = 75%.

Percentage Calculator

Free online tool for calculating percentages, fractions, and percentage changes. Choose from 6 different calculation types below.

How to Calculate Percentage

What is X% of Y? X is what % of Y? Percentage Increase/Decrease Percentage Change Percentage to Fraction Fraction to Percentage

What is

= 0

is what percent of

= 0%

Change from to = 0%

Change by % = 0

Convert % to fraction = 0

Convert / to percentage = 0%

Benefits of Using a Percentage Calculator

What is X% of Y Calculator

Formula: (X/100) × Y

This calculator helps you find a percentage of any number. For example, calculating a 15% tip on a $50 bill.

Example: What is 15% of 200?

Solution: (15/100) × 200 = 30

X is what % of Y Calculator

Formula: (X/Y) × 100

Use this to find what percentage one number is of another. Perfect for calculating success rates or proportions.

Example: 25 is what percent of 200?

Solution: (25/200) × 100 = 12.5%

Percentage Increase/Decrease Calculator

Formula: ((New Value - Old Value) / Old Value) × 100

Calculate how much a value has increased or decreased in percentage terms. Useful for tracking growth or decline.

Example: Price increased from $100 to $150

Solution: ((150 - 100) / 100) × 100 = 50% increase

Percentage Change Calculator

Formula: Original Value ± (Original Value × Percentage/100)

Find the new value after applying a percentage increase or decrease. Great for calculating discounts or markups.

Example: Increase 200 by 25%

Solution: 200 + (200 × 25/100) = 250

Percentage to Fraction Calculator

Formula: Percentage ÷ 100, then simplify

Convert percentages to their simplest fraction form. Useful for mathematical calculations and comparisons.

Example: Convert 75% to fraction

Solution: 75% = 75/100 = 3/4

Fraction to Percentage Calculator

Formula: (Numerator ÷ Denominator) × 100

Convert fractions to their percentage equivalent. Helpful for understanding proportions in percentage terms.

Example: Convert 3/4 to percentage

Solution: (3 ÷ 4) × 100 = 75%

Percentage Calculator

How to Calculate Percentage

What is X% of Y Calculator

Related Percentage Calculators

Benefits of Using a Percentage Calculator

What is X% of Y Calculator

X is what % of Y Calculator

Percentage Increase/Decrease Calculator

Percentage Change Calculator

Percentage to Fraction Calculator

Fraction to Percentage Calculator