Percentage Calculator
Calculate percentages, percentage change, and percentage difference with ease.
About Percentage Calculator
Our Percentage Calculator is a versatile tool designed to handle all your percentage calculation needs. Whether you need to find a percentage of a number, calculate percentage change between two values, or determine the percentage difference, this tool provides instant and accurate results.
Percentages are used extensively in everyday life - from calculating discounts and sales tax to analyzing statistical data and financial reports. Our calculator makes these computations simple and quick, helping you save time and avoid calculation errors.
What is X% of Y?
X is What % of Y?
Percentage Change
Calculate the percentage increase or decrease from one value to another.
Percentage Difference
Calculate the percentage difference between two values.
Percentage of Total
Calculate multiple percentages of a total and see the remaining amount.
Add/Subtract Percentage
Add or subtract a percentage from a number.
How to Use
Choose Your Calculator
Select the type of percentage calculation you need from the six available calculators: basic percentage, find percentage, percentage change, percentage difference, multiple percentages, or add/subtract percentage.
Enter Your Values
Input the numbers in the appropriate fields. Each calculator has clearly labeled input fields to guide you through the process.
Get Instant Results
Click the calculate button and your results will appear instantly below the form. All calculations are performed immediately with full precision.
Percentage Formulas
Basic Percentage
Result = (Percentage / 100) × Number
Example: 25% of 200 = (25/100) × 200 = 50
Find Percentage
Percentage = (Number / Total) × 100
Example: 50 is what % of 200? = (50/200) × 100 = 25%
Percentage Change
Change = ((New - Old) / |Old|) × 100
Example: From 100 to 150 = ((150-100)/100) × 100 = +50%
Percentage Difference
Difference = (|A - B| / ((A + B) / 2)) × 100
Example: Between 100 and 150 = (50/125) × 100 = 40%
Frequently Asked Questions
How do I calculate a percentage of a number?
To calculate a percentage of a number, multiply the percentage by the number and divide by 100. For example, to find 20% of 150, calculate (20 × 150) / 100 = 30. Our calculator does this instantly for you.
What is the difference between percentage change and percentage difference?
Percentage change measures the relative change from an old value to a new value (it can be positive or negative). Percentage difference measures the absolute difference between two values relative to their average, always expressed as a positive percentage.
Can I calculate discounts using this tool?
Yes! Use the "Add/Subtract Percentage" calculator to find discounted prices. Enter the original price and the discount percentage, then click "Subtract %" to get the final price after discount.
How accurate are the calculations?
All calculations are performed using high-precision arithmetic in your browser. Results are displayed with up to 2 decimal places for clarity. The calculations are mathematically exact.
Is my data stored or shared?
No, we respect your privacy. All calculations are performed locally in your browser. We do not store, transmit, or share any of the numbers you enter. Your data stays on your device only.
Can I use this tool on mobile devices?
Absolutely! Our Percentage Calculator is fully responsive and works perfectly on smartphones, tablets, and desktop computers. The interface automatically adjusts to provide the best experience on any screen size.