Percentage Calculator

How Percentage Calculator Works?

The Online Percentage Calculator simplifies various types of percentage-based calculations such as finding a percentage of a number, calculating what percentage one number is of another, and increasing or decreasing values by a percentage.

  • Step 1: You choose the type of percentage calculation (e.g., "What is X% of Y?" or "Increase Y by X%").
  • Step 2: Enter the required values like percentages and base numbers into the input fields.
  • Step 3: The calculator applies the appropriate percentage formula based on your selection.
  • Step 4: The result is instantly displayed, giving you accurate and quick percentage-based answers.

Helpful Information About Percentage Calculator

What is percentage and why is it important?

The term percentage represents a number or ratio expressed as a fraction of 100. It is widely used in finance, academics, statistics, shopping, and everyday life to compare values, show proportions, and analyze growth or change. Understanding what is percentage helps you make sense of discounts, grades, interest rates, and more.

How to calculate percentage?

How to calculate percentage is simple: divide the part value by the total value, then multiply by 100. For example, if you scored 45 out of 50 in a test, your percentage would be (45 ÷ 50) × 100 = 90%. Our Percentage Calculator automates this for fast and accurate results.

How to calculate percentage in Excel?

To calculate percentage in Excel, use a formula like =A1/B1*100 where A1 is the part and B1 is the total. You can also format the result cell as a percentage. Excel makes it easy to handle multiple percentage calculations in financial reports, academic results, and data analysis.

How to calculate percentage increase or decrease?

To calculate percentage increase, use the formula: ((New - Old) ÷ Old) × 100. For percentage decrease, the formula is the same. This is useful in tracking price changes, performance growth, sales drops, and more.

How to calculate what percentage one number is of another?

To find what percentage one number is of another, divide the first number by the second and multiply by 100. For example, (25 ÷ 200) × 100 = 12.5%. This is useful for understanding relative sizes or comparisons in data.

Can the percentage calculator handle decimals and large numbers?

Yes, our percentage calculator is built to support decimal numbers, large figures, and precise calculations. Whether you're working with exam marks, budget analysis, or discounts, it ensures accuracy every time.

Where are percentages used in real life?

Percentages are used in countless areas — from school grades and shopping discounts to bank interest rates and health statistics. Learning how to calculate percentage gives you a practical tool for solving daily problems and interpreting useful data.

Frequently Asked Questions (FAQs)

In mathematics, percentage refers to a number expressed as a fraction of 100. It's used to describe proportions, comparisons, and changes. For example, 25% means 25 out of 100.

To calculate percentage, divide the part by the total and multiply the result by 100. For example, (45 ÷ 60) × 100 = 75%. This method is widely used in academics, finance, and daily life.

You can calculate percentage in Excel using the formula =A1/B1*100, where A1 is the part and B1 is the total. Format the result cell as a percentage to display it properly.

Use the formula ((New - Old) ÷ Old) × 100 to find percentage increase or decrease. For example, if a price rises from ₹200 to ₹250, the increase is ((250-200)/200)*100 = 25%.

Yes! This percentage calculator is perfect for finding discounts, sale prices, and offers. Just enter the original amount and the discount percentage to know the final price instantly.

Absolutely. Our percentage calculator handles decimals and large numbers, making it suitable for everything from exam scores to tax and profit calculations.

Yes, this tool is completely free, easy to use, and works on mobile, tablet, and desktop — no login required!