How do you calculate a simple percentage?

To find the percentage of a number, you convert the percentage to a decimal and then multiply it by the number. For example, to find 20% of 150, you calculate (20 / 100) * 150 = 0.20 * 150 = 30.

How do I calculate percentage increase or decrease?

To calculate the percentage change, subtract the old value from the new value, then divide by the old value, and finally, multiply by 100. The formula is: ((New Value - Old Value) / Old Value) * 100. A positive result indicates an increase, while a negative result indicates a decrease.

What's an easy way to calculate a tip?

A quick way to calculate a tip is to find 10% of the bill first by moving the decimal point one place to the left. For a ₹1200 bill, 10% is ₹120. For a 20% tip, you would double that amount (₹240). For a 15% tip, you would take the 10% value and add half of it (₹120 + ₹60 = ₹180).

Percentage Calculator

A versatile tool for all your percentage calculation needs.

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About the Percentage Calculator

Understand how to use this tool and the importance of percentages in daily life.

What is a Percentage?

A percentage is a number or ratio expressed as a fraction of 100. It is often denoted using the percent sign, "%", or the abbreviation "pct.". Percentages provide a standardized way to talk about parts of a whole, making it easier to compare quantities and understand proportions. For example, saying "50 percent" is clearer and more universal than saying "half". This concept is a cornerstone of mathematics and is used extensively in finance, statistics, and everyday life.

How to Use This Versatile Calculator

Our Percentage Calculator is a powerful, multi-functional tool designed to be intuitive and solve the most common percentage-related tasks. It's divided into three distinct functions, accessible via easy-to-use tabs:

X% of Y: This is the most common percentage calculation. Use this tab when you need to find out what a specific percentage of a number is. For example, to calculate a 20% discount on an item priced at ₹500, you would find "20% of 500".
X is % of Y: This function is useful for finding the relationship between two numbers as a percentage. For example, if you scored 45 marks out of a total of 50 on a test, you can use this to find out your score in percentage terms.
% Change: This tab helps you calculate the percentage increase or decrease from an original value to a new value. It's perfect for tracking financial growth (e.g., how much your investment has grown), weight loss, or any other change over time.

Practical, Everyday Uses

Percentages are all around us, and being able to calculate them quickly is a valuable skill. This tool makes those calculations effortless in various real-world scenarios:

Shopping Discounts

Instantly find out how much you'll save during a sale by calculating the discount amount on an item. For example, what is 40% off on a ₹2000 jacket?

Restaurant Tips

Easily calculate the appropriate tip for your service. If your bill is ₹1500 and you want to leave a 10% tip, find "10% of 1500".

Financial Analysis

Track the growth of your investments or savings. If your investment grew from ₹10,000 to ₹12,500, you can calculate the percentage increase.