What is X% of Y?
Multiply the number by the percentage and divide by 100.
MATH CALCULATORS
Percentage Calculator
Calculate percentages quickly and easily. Find percentages, percentage increases and decreases, and more.
01
What is X% of Y?
Find a percentage of any number.
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Result—
02
X is what percentage of Y?
Find what percentage one number is of another.
Result—
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Percentage Increase or Decrease
Calculate the percentage change between two values.
Percentage Change—
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Percentage Difference
Compare two values using percentage difference.
Percentage Difference—
Percentage Calculator
Use this percentage calculator to quickly solve common percentage problems. You can calculate a percentage of a number, determine what percentage one number is of another, and calculate percentage increases or decreases.
How to calculate a percentage
To calculate a percentage, divide the part by the whole and multiply the result by 100.
Percentage = (Part ÷ Whole) × 100
Percentage calculation example
For example, to calculate 20% of 150:
150 × 20 ÷ 100 = 30
Therefore, 20% of 150 is 30.
Common percentage calculations
What percentage is X of Y?
Divide X by Y and multiply the result by 100.
Percentage increase
Find how much a value increased compared with its original value.
Percentage decrease
Find how much a value decreased compared with its original value.
Frequently asked questions
How do I calculate a percentage?
Divide the part by the whole and multiply by 100. For example, 25 out of 100 is 25%.
How do I calculate percentage increase?
Subtract the original value from the new value, divide by the original value, and multiply by 100.
How do I calculate percentage decrease?
Subtract the new value from the original value, divide by the original value, and multiply by 100.