Percentage Calculator

What Does a Percentage Represent?

A percentage expresses a number as a fraction of 100. It offers a quick and intuitive way to compare values. You’ll see it written with the percent symbol (%)—for example, 68% means 68 out of every 100. Sometimes, it may be written as “percent” or “pct.”

Percentages are widely used in everyday life—in finance, education, shopping discounts, and data analysis—because they make comparisons easy to understand.

Converting Between Percentages, Decimals, and Fractions

• Percent to Decimal: Divide by 100
  Example: 40% = 40 ÷ 100 = 0.40

• Decimal to Percent: Multiply by 100
  Example: 0.22 = 0.22 × 100 = 22%

• Percent to Fraction: Divide by 100 and simplify
  Example: 75% = 75/100 = 3/4

How to Calculat Percentages

To find the value that results from applying a percentage to a number, use this formula:

Example: Find 15% of 160

So, 15% of 160 is 24.

To find what percentage one number is of another, use:

Example: If 2.4 is a portion of 48:

Our calculator simplifies this entire process and handles all necessary conversions for you.

How to Calculate Percentage Change

To find how much a number has increased or decreased compared to its original value:

• Increase Example:
  Original: 400, New: 460
  (460 – 400) ÷ 400 × 100 = 15% increase

• Decrease Example:
  Original: 400, New: 340
  (400 – 340) ÷ 400 × 100 = 15% decrease

Finding the Percentage Difference Between Two Numbers

This formula helps calculate how different two numbers are as a percentage of their average:

Example:

So, the percentage difference is 40%.

Use Our Percentage Calculator with Ease

Our calculator is built to make all types of percentage problems quick and easy. Whether you’re finding a part of a number, comparing values, or working out increases or decreases, just enter the figures and the tool does the rest.

You can use it to:

• Compute a percentage of any number

• Find out what percent one value is of another

• Calculate increases or decreases by percentage

• Determine percentage differences between two values

Frequently Asked Questions (FAQs)

1. What is a percentage?

A percentage is a way to express a number as a fraction of 100. It’s often used to compare parts of a whole, and is denoted using the “%” symbol. For example, 30% means 30 out of 100.

2. How do I calculate a percentage of a number?

To find a percentage of a number, convert the percentage to a decimal and multiply it by the number.
Example: To find 25% of 200 →
25% = 0.25 → 0.25 × 200 = 50

3. How can I find what percent one number is of another?

Use the formula:
(Part ÷ Whole) × 100 = Percentage
Example: What percent is 20 of 80?
(20 ÷ 80) × 100 = 25%

4. How do I calculate percentage increase or decrease?

Use this formula:
((New Value - Original Value) ÷ Original Value) × 100

• If the result is positive, it’s a percentage increase.

• If it’s negative, it’s a percentage decrease.

Example: From 150 to 180 →
((180 – 150) ÷ 150) × 100 = 20% increase

5. What is the difference between percentage change and percentage difference?

• Percentage change compares a new value to the original value (used for increases or decreases).

• Percentage difference compares two values without focusing on which is original, using the average of both.

6. Can this calculator be used for discount calculations?

Yes! Simply enter the original price and the discount percentage to find the new price after the discount.

7. How do I convert a decimal to a percent?

Multiply the decimal by 100 and add the “%” sign.
Example: 0.35 = 0.35 × 100 = 35%

8. Is this percentage calculator mobile-friendly?

Yes, the calculator is optimized for both desktop and mobile devices for easy use on the go.