Percentage Formula

 In its simplest form, percent man 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 = %, it is majorly used to compare and finding out ratios.
The Percentage Formula is given as,\[\large Percentage = \frac{Value}{Total\:Value}\times 100\]

Solved Examples

Question 1: What is the percentage of $\frac{4}{5}$?
= $\frac{4 \times 20}{5 \times 20}$
= $\frac{80}{100}$

= 80%

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

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

The molecular formula of a compound is C2H6O. Name its homologous series.