Percentage Formula
The percentage formula helps in calculating the share of something in terms of 100. The percentage can be defined as a fraction or a ratio in which the value of the whole is always 100. The symbol used to represent percentage is %, called the percent symbol. Let us understand the percentage formula using solved examples.
What is Percentage Formula?
To calculate percentages means to find the share of a whole, in terms of 100. The two ways to find a percentage are given below:
 By using the unitary method.
 By changing the denominator of the fraction to 100.
Note: The second method to calculate percentage can not be used in situations where the denominator is not a factor of 100. For cases like this, we use the unitary method.
The percentage formula is given as:
Percentage = (Value ⁄ Total Value) × 100
Let's take a quick look at a couple of examples to understand the percentage formula, better.
Solved Examples Using Percentage Formula

Example 1: Express \(\frac{3}{5}\) as a percentage.
Solution:
To find: Percentage equivalent for fraction \(frac{3}{5}\).
Using the percentage formula,
Percentage = (Value ⁄ Total Value) × 100
Percentage = \(\frac{3}{5} \times 100\) = 60%Answer: \(\frac{3}{5}\) can be written as 60%.

Example 2: There are 180 students in a class. Out of which, 60 are girls. Calculate the percentage of girls in the class.
Solution:
To find: Percentage of girls in a class
Using the percentage formula,
Percentage = (Value ⁄ Total Value) × 100
= \(\dfrac{60}{180} \times 100\) = 33.33%
Answer: The percentage of girls in the class = 33.33%.