What is percentage?

A percentage is a way of expressing a number as a fraction of 100. It is denoted by the % symbol and helps compare proportions easily. Mathematically, it is defined as a part of a whole, where 100 is the total. It is calculated as, Percentage=(Part/Whole)×100.

For examples:

50% means 50 out of 100 or half (1/2).
25% means 25 out of 100 or one-fourth (1/4).
75% means 75 out of 100 or three-fourths (3/4).

What is the usage of percentage?

In discounts (e.g., 20% off on a product)
In marks & grades (e.g., 85% in an exam)
In profit & loss calculations
In interest rates (e.g., 5% annual interest)

How to calculate the percentage of a number?

To calculate the percentage of a number, use the formula, Percentage of a Number=(Given Number×Percentage)/100.

For example:

Q) Find 20% of 150.

=(150×20)/100=30

So, 20% of 150 is 30.

Why do percentages matter?

Percentages are essential in everyday life because they make it easy to compare, analyze, and interpret data. They are widely used in various fields like finance, business, education, and daily decision-making.