Percentage Calculator

Find Percentage of a Number

Want to know what a certain percent of a number is? Enter the percentage and the number — the tool will calculate it instantly.

What is percent of

What Percent is One Number of Another?

Want to know what percentage one number is of another? Enter both numbers and see the result immediately!

Is what percent of

Calculate Percentage Increase or Decrease

Want to find out the percentage change between two numbers? Enter the starting and ending values to get the answer.

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Instant Results with Our Online Percentage Calculator

Whether you're a student doing math or a business owner checking prices, our percentage calculator is the perfect tool. Quickly calculate discounts, tax, price increases, or decreases in just seconds!

Thanks to the simple interface, you just enter the numbers and get the correct percentage right away. It’s super easy to use!

How Our Percentage Calculator Works

🔢 Find a Percentage of a Number

Want to know what a certain percent of a number is? Just enter the percent and the number, click “Calculate”, and you’ll get the answer right away.

    Example: Want to find 20% of 150? Enter 20 as the percent and 150 as the number — you’ll see the result is 30.
  

📊 What Percent One Number Is of Another

This helps you find out what percent one number is of another. For example, how much percent is 50 out of 200?

📈 Calculate Percent Increase or Decrease

Want to know how much something has gone up or down in percent? Enter the old value and the new value — the calculator will show the percent change.

🧮 How to Calculate Percentages

How Do You Find a Percentage?

    ➔ Multiply the number by the percent (as a decimal), or divide by 100.  
    
Example: 20% of 150 = 150 × 0.20 = 30

How to Turn a Number Into a Percentage?

    ➔ Multiply the number by 100.  
    
Example: 0.25 × 100 = 25%

📐 Basic Percentage Formula

(part ÷ whole) × 100 = percent

🔄 Find the Percentage Between Two Numbers

    ➔ Subtract the smaller number from the larger one, divide the difference by the original number, and multiply by 100.
  

📚 Practice Makes Perfect

We use percentages every day! The more you practice, the faster and better you’ll get at it — whether for school, shopping, or work.

⏪ Work Out the Original Value Before a Change

    ➔ Divide the new amount by (1 + or − the percent in decimal).  
    
Example: 110 divided by 1.10 = 100

👦 Percentages for Kids

Kids learn how to turn numbers into percentages, figure out simple discounts, and understand everyday uses of percentages at school.

🧩 Find What Part of the Total Something Is

    ➔ Divide the part by the total and multiply by 100.  
    
Example: 50 apples out of 200 = 25%