Percentage Calculator
Easily calculate percentages, increases, and decreases.
Why Use Our Percentage Calculator?
Calculating percentages correctly is vital for financial decisions, shopping, and data analysis. Our online percentage calculator simplifies complex calculations instantly.
Features:
- What is X% of Y?: Finds the portion value.
- What percent is X of Y?: Determines the percentage ratio between two numbers.
How to Use This Percentage Calculator
This tool helps you quickly calculate percentages for everyday situations – whether you’re figuring out a discount, calculating a grade, working out a tip, or comparing two numbers. Just enter your values above to get an instant result.
Percentage Calculator for Grades
If you scored 42 out of 50 on a test, your percentage grade would be 84%. This calculator makes it easy to convert any score into a percentage, so you can quickly check where you stand.
Example: Calculating a Discount
If an item costs $80 and is on sale for 25% off, you’d save $20, bringing the final price to $60. Enter the original price and discount percentage above to calculate savings on any purchase.
Percentage Increase and Decrease Explained
To find a percentage increase, subtract the original number from the new number, divide by the original number, then multiply by 100. For example, going from 50 to 65 is a 30% increase. The same formula works in reverse for percentage decreases.
Frequently Asked Questions
How do I calculate what percentage one number is of another?
Divide the smaller number by the larger number, then multiply by 100. For example, 15 is 30% of 50 (15 ÷ 50 × 100).
What’s the difference between percentage change and percentage points?
Percentage change measures relative change (going from 10% to 15% is a 50% increase), while percentage points measure the absolute difference (a 5 percentage point increase).
How do I reverse-calculate an original price from a discounted price?
Divide the discounted price by (1 minus the discount as a decimal). For example, a $60 price after a 25% discount means the original price was $60 ÷ 0.75 = $80.