How to calculate percentage?

To find a percentage, you follow a simple process. First, you divide the number you're interested in (called the "part") by the total number (referred to as the "whole"). Then, you multiply the result by 100.

Let's take an example: If you want to calculate 20% of 100, here's what you do:

20 (part) ÷ 100 (whole) × 100 = 20%

An alternative approach involves employing a formula to accomplish this task.

Percentage = (part ÷ whole) × 100

In this formula:

- "part" represents the number you're finding the percentage of.
- "whole" stands for the total number.

So, to find 20% of 100 using this formula, it would be:

Percentage = (20 ÷ 100) × 100 = 20%

Percentages come in handy when you want to compare different amounts. For instance, you might use percentages to see how well two products sold, or to understand the proportion of students who passed a test.

Divide the number of marks by the total number of marks available to achieve this. Your fraction would be 80/100, for instance, if you received 80 out of 100 possible points. By multiplying by 100, you can then convert this to a percentage. In this case, 80/100 would be converted to 0.8 x 100, or 80%.