Percentage Calculator

What is percentage?

A percentage, often known as a percent, is a fraction of a number that is less than 100 percent. Percentage denotes a portion of a total amount and means "per one hundred".

For example, 45% represents 45 out of 100, or 45 percent of the total amount.

Percentage may also be referred to as "out of 100" or "for every 100".

For example, you could say either "it snowed 20 days out of every 100 days" or you could say "it snowed 20% of the time".

A percentage may be written in a few different ways. One way to write or denote a percentage is to portray it as a decimal.

For example, 24% could also be written as .24. You can find the decimal version of a percent by dividing the percentage by 100. A percent can also be depicted by using a percent sign or "%".

To calculate the percentage

Multiply this fraction by 100 and add a percent sign. 100 * numerator / denominator = percentage . In our example it's 100 * 2/5 = 100 * 0.4 = 40 .

The change in a given value is equal to a percentage change. A percentage change can be solved by dividing the total by the original amount and multiplying by 100. The following is the formula for solving a percentage change:

• For a price or percentage increase:
  [(New Price - Old Price)/Old Price] x 100

• For a price or percentage decrease:
  [(Old Price - New Price)/Old Price] x 100

Applications of percentage calculators 

Percentage calculators are versatile tools used in various contexts. Here are some popular uses:

1. Academic Grading: Teachers and students often use percentage calculators to determine grades on assignments, exams, or overall course performance.
2. Financial Calculations: People use percentage calculators for financial purposes such as calculating interest rates, discounts, markups, and profit margins in business transactions.
3. Budgeting: Individuals and households use percentage calculators to allocate budget percentages to different categories such as housing, food, transportation, and savings.
4. Tip Calculation: When dining out or using services like taxis or salons, percentage calculators can determine appropriate tip amounts based on the total bill and desired tip percentage.
5. Tax Calculations: Taxpayers use percentage calculators to compute taxes owed or tax deductions as a percentage of income or expenses.
6. Fitness and Health: Fitness enthusiasts use percentage calculators to track progress, such as body fat percentage, muscle mass gain, or calorie intake as a percentage of recommended daily allowance.
7. Data Analysis: Researchers and analysts use percentage calculators to interpret data, calculate proportions, and determine statistical significance in surveys, experiments, or studies.
8. Sports Statistics: Coaches, athletes, and sports enthusiasts use percentage calculators to analyze performance metrics such as shooting accuracy, completion rates, or winning percentages.
9. Population Growth: Demographers and economists use percentage calculators to analyze population growth rates, birth rates, mortality rates, and other demographic indicators.
10. Marketing and Sales: Businesses use percentage calculators to analyze sales performance, conversion rates, market share, and campaign effectiveness.