Percentage Formula

Percentage formula is used to find the amount or share of something in terms of 100. In its simplest form, percent means per hundred. To express a number between zero and one, percentage formula is used. It is defined as a number represented as a fraction of 100. Denoted by the symbol = %, the percentage is majorly used to compare and find out ratios.

Formula to Calculate Percentage

The Percentage Formula is given as,

Percentage = (Value ⁄ Total Value) × 100

Solved Example Questions Using the Formula for Percentage:

Question 1: Express ⅘ as percentage.

Solution:

⅘ = (4 × 20 ⁄ 5 × 20)

= (80 ⁄ 100)

= 80%

Question 2: There are 150 students in a class. Out of them, 75 are girls. Find the percentage of girls in the class?

Solution:

Total students in the class=150

Girls in the class = 75

% of girls in the class = (75 ⁄ 150) × 100 = (7500 ⁄ 150) = 50%


Practise This Question

Which of the following is correct about ozone?