Percentage calculator

Percentage = part ÷ whole × 100. For example, 30 is 25% of 120, and marks of 450 out of 600 are 75%. A change from 48 to 60 is an increase of 25%.

Enter the details

What do you want to calculate?
%

Result

Please complete the details. The result will appear here.

How it is calculated

  1. Percent of a number: result = number × percentage ÷ 100.
  2. What percent: percentage = part ÷ whole × 100.
  3. Percentage change = (new value − original value) ÷ |original value| × 100. A positive result is an increase and a negative result is a decrease.
  4. Results are shown to up to four decimal places.
  5. All calculations are done in your browser. The details you enter are not sent to any server.

Worked examples

What is 15% of 80?

Details
Percentage 15%, Number 80
Result
15% of 80 is 12.

30 is what percent of 120?

Details
Part (for example, marks obtained) 30, Whole (for example, total marks) 120
Result
30 is 25% of 120.

Marks of 450 out of 600 as a percentage

Details
Part (for example, marks obtained) 450, Whole (for example, total marks) 600
Result
450 is 75% of 600.

Change from 48 to 60

Details
Original value 48, New value 60
Result
From 48 to 60 is an increase of 25%.

Change from 60 to 48

Details
Original value 60, New value 48
Result
From 60 to 48 is a decrease of 20%.