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Percentage Calculator

Simple percentage calculations, explained in plain English.

What is a percentage of a number?

Example: 10% of 100 is 10.

% of?

One number is what percentage of another?

Example: 10 out of 100 is 10%.

is what % of?

A number is a percentage of what total?

Example: 50 is 20% of 250.

is% of what?

Percentage increase or decrease

Example: going from 100 to 125 is a 25% increase.

Fromto

Percentage difference between two numbers

Example: 80 and 100 have a percentage difference of 22.22%.

This compares the difference between two values with their average. Use increase/decrease above when one number is specifically the old value and the other is the new value.

Betweenand
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How to use Percentage Calculator

  1. 1Choose the percentage calculation that matches what you need.
  2. 2Enter the numbers into the relevant fields.
  3. 3The answer appears instantly and can be copied when needed.

Useful tips

  • •Use percentage increase or decrease when comparing an old value with a new value.
  • •Use percentage difference when comparing two values without treating either one as the starting value.
  • •For example, 20% of 80 is 16, while an increase from 80 to 100 is 25%.

Frequently asked questions

How do I calculate a percentage of a number?

Multiply the number by the percentage divided by 100. Wid9et does this automatically for you.

How do I calculate percentage increase?

Subtract the old value from the new value, divide by the old value, then multiply by 100.

What is the difference between percentage change and percentage difference?

Percentage change uses a starting value. Percentage difference compares two values using their average.