Percentage Calculator

Real-World Percentage Examples

Percentages are used everywhere! Here are some common scenarios where our calculator can help:

• Shopping Discounts: A shirt is $50 and it's 30% off. Use the "X minus Y%" calculator (50 minus 30%) to find the final price ($35).
• Calculating Tips: Your restaurant bill is $80 and you want to leave an 18% tip. Use the "What is X% of Y?" calculator (18% of 80) to find the tip amount ($14.40).
• Sales Tax: An item costs $200 and sales tax is 7%. Use the "X plus Y%" calculator (200 plus 7%) to find the total cost ($214).
• Interest Rates: You have $1000 in savings with a 2.5% annual interest rate. Use "What is X% of Y?" (2.5% of 1000) to see your annual interest ($25).
• Comparing Prices: Store A sells a product for $40, Store B for $45. Use the "Percentage Difference" calculator to see how much more expensive Store B is.
• Tracking Growth: Your website traffic went from 500 visitors/day to 650 visitors/day. Use the "Percentage Increase/Decrease" calculator to find the growth percentage (30% increase).

How to Calculate Percentages

Our percentage calculator makes it easy to solve all types of percentage problems. Below are explanations for each calculator type:

What is X% of Y?

This calculator finds the value that represents X percent of number Y. For example, "What is 15% of 200?" would calculate 30.

Formula: (X / 100) × Y

X is what % of Y?

This calculator determines what percentage number X is of number Y. For example, "30 is what % of 200?" would calculate 15%.

Formula: (X / Y) × 100

Percentage Increase/Decrease

This calculator finds the percentage increase or decrease between two numbers. For example, if a price changes from $100 to $120, that's a 20% increase.

Formula: ((New Value - Original Value) / Original Value) × 100

X plus Y%

This calculator adds Y percent to number X. For example, "100 plus 10%" would calculate 110.

Formula: X + (X × (Y / 100))

X minus Y%

This calculator subtracts Y percent from number X. For example, "100 minus 10%" would calculate 90.

Formula: X - (X × (Y / 100))

Percentage Difference

This calculator finds the percentage difference between two numbers. For example, the difference between 80 and 100 is 22.22% (relative to the average).

Formula: (|X - Y| / ((X + Y)/2)) × 100

About Percentage Calculator

Our free online percentage calculator helps you solve common percentage problems quickly and accurately. Whether you're calculating discounts, tips, interest rates, or statistical data, our tool provides instant results.

Common Uses

• Calculating sales tax or discounts while shopping
• Determining tip amounts at restaurants
• Analyzing financial growth or decline
• Calculating test scores and grades
• Working with statistics and data analysis
• Adjusting recipe quantities

Why Use Our Calculator?

• Completely free with no registration required
• Works on all devices - desktop, tablet, and mobile
• No ads interrupting your calculations
• Clear, easy-to-understand results
• Multiple calculation types in one place