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 defines 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,

\[\large Percentage = \frac{Value}{Total\:Value}\times 100\]

Solved Example Questions Using the Formula for Percentage:

Question 1: What is the percentage of $\frac{4}{5}$?

Solution:

$\frac{4}{5}$= $\frac{4 \times 20}{5 \times 20}$

= $\frac{80}{100}$

= 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=$\frac{75}{150}\times$ 100 = $\frac{7500}{150}$ = 50 %


Practise This Question

Which of the following pyramid is always upright and can never be inverted?