Percentage Calculator
Calculate percentages quickly and accurately. Find a percentage of a number, calculate what percentage one number is of another, and work out percentage increases, decreases and differences.
Calculate Percentages
Choose the calculation you need below and enter your numbers.
Percentage Calculator
Use this free percentage calculator to quickly solve common percentage problems. You can calculate a percentage of a number, find what percentage one number represents of another, and calculate percentage increases, decreases and differences.
How to Calculate a Percentage
The basic percentage formula is:
For example, if you want to know what percentage 25 is of 100, divide 25 by 100 and multiply the result by 100. The answer is 25%.
What Is X% of Y?
To calculate a percentage of a number, convert the percentage to a decimal and multiply it by the number.
You can use the first calculator above to perform this calculation instantly.
How to Calculate What Percentage One Number Is of Another
Divide the first number by the second number and multiply by 100.
(50 ÷ 200) × 100 = 25%
How to Calculate Percentage Increase
Percentage increase measures how much a value has increased compared with its original value.
For example, if a price increases from GH₵100 to GH₵125, the increase is GH₵25. Dividing GH₵25 by GH₵100 gives 25%, so the percentage increase is 25%.
How to Calculate Percentage Decrease
Percentage decrease measures how much a value has fallen compared with its original value.
For example, if a price falls from GH₵200 to GH₵150, the decrease is GH₵50. GH₵50 divided by GH₵200 equals 25%, so the percentage decrease is 25%.
What Is Percentage Difference?
Percentage difference is commonly used to compare two values when neither value is necessarily considered the original or starting value.
This is different from percentage increase or decrease because the denominator is based on the average of the two values.
Where Are Percentages Used?
Percentages are used in everyday life, business, finance, education and shopping. Common examples include:
- Calculating discounts during shopping.
- Calculating tax and VAT.
- Comparing salary increases.
- Calculating loan interest.
- Measuring investment returns.
- Calculating exam scores.
- Comparing business growth.
- Calculating price increases and reductions.
Percentage Discount Example
Suppose a product costs GH₵500 and has a 20% discount. The discount is GH₵100, because 20% of GH₵500 equals GH₵100. The discounted price is therefore GH₵400.
Percentage vs Percentage Points
Percentage and percentage points are not always the same thing. If an interest rate increases from 10% to 15%, it increased by 5 percentage points. However, the relative percentage increase is 50%.
Understanding the difference is particularly important when comparing interest rates, financial statistics and other rates.
Why Use an Online Percentage Calculator?
An online percentage calculator saves time when working with multiple percentage calculations. Instead of manually applying the formulas, you can enter your values and receive the result immediately.
Percentage Calculator FAQ
How do I calculate a percentage?
Divide the part by the whole and multiply the result by 100. For example, 25 out of 100 is (25 ÷ 100) × 100 = 25%.
What is 20% of 500?
20% of 500 is 100. The calculation is 0.20 × 500 = 100.
How do I calculate percentage increase?
Subtract the original value from the new value, divide the result by the original value, and multiply by 100.
How do I calculate percentage decrease?
Subtract the new value from the original value, divide by the original value, and multiply by 100.
What is the difference between percentage and percentage points?
Percentage points describe the direct difference between two percentage values. A percentage change describes the relative change from the original value.
How do I calculate a discount percentage?
Multiply the original price by the discount percentage expressed as a decimal. Subtract the resulting discount from the original price.
Can I use this calculator for prices and money?
Yes. The calculator can be used for prices, discounts, salary changes, business calculations, statistics and other percentage calculations.
What is percentage difference?
Percentage difference compares two values using the absolute difference divided by the average of the two values, multiplied by 100.
