Introduction:

Percentage is a widely-used concept that comes up in numerous different scenarios, from calculating discounts at stores to statistical analysis in various fields. Thus, understanding how to calculate percentage is crucial across various disciplines and everyday life. In this article, we will explore the formula used to calculate percentage and some examples to help you grasp the concept.

The Formula:

The formula for calculating percentage is straightforward and easy to remember. Here’s the basic formula:

Percentage = (Part / Total) × 100

In this equation, “Part” represents the portion or segment you’re trying to find the percentage of, and “Total” is the entire amount. By dividing the part by the total and then multiplying by 100, you obtain the desired percentage.

Examples:

Let’s dive into some examples of using this formula for calculating percentage:

1.Exam Score

Suppose that on a test consisting of 50 questions, a student answers 40 questions correctly. To find their score as a percentage, we would use the formula mentioned above:

Percentage = (40 / 50) × 100

Percentage = (0.8) × 100

Percentage = 80%

This means that the student achieved an 80% score on their exam.

2.Discount Calculation

Imagine you come across a shirt on sale with a discount of 25%. The original price is $60. To find out how much money you will save on this purchase:

Discount amount = 25% × $60;

First, convert the percentage to its decimal form: 25% ÷ 100 = 0.25;

Now apply the formula:

Discount amount = 0.25 × $60;

Discount amount = $15;

Thus, you will save $15 on this purchase.

3.Population Growth

The population of a town increased from 20,000 people to 25,000 people in one year. To determine the percentage growth:

New residents = 25,000 – 20,000 = 5,000;

Percentage growth = (5,000 / 20,000) × 100;

Percentage growth = (0.25) × 100;

Percentage growth = 25%;

The population of the town increased by 25% over one year.

Conclusion:

The formula to calculate percentage is simple yet versatile, playing a vital role in various fields and daily situations. By understanding and practicing this formula, you’ll be able to solve a wide array of problems involving percentages with ease and confidence.