Percentage Calculator
Last Updated: 8 April 2026
Percentage Calculator
Solve common percentage problems instantly
What is Percentage Calculator?
This tool handles three common percentage tasks: 1) What is X% of Y? (Calculating Discount), 2) X is what % of Y? (Calculating Marks), and 3) Percentage Increase/Decrease (Calculating Growth).
📊 Practical Example
"Percentage Change: If a price goes from ₹100 to ₹150, the increase is 50%. | Percent of Value: 18% GST on ₹1000 is ₹180."
⚠️ Common Mistake
Confusing 'Percentage Change' with 'Percentage Of'. To find the new price after a raise, calculate the % amount first, then add it to the original.
How it Works & Benefits
Universal
Solves all 3 types of percentage problems: Find %, Find Value, and % Change.
Instant
No complex steps. Just enter values and get the answer immediately.
Mobile Friendly
Big inputs and simple layout for easy use on phones.
Frequently Asked Questions
Common queries answered for you
To find X% of Y, simply multiply Y by X and divide by 100. Example: 20% of 500 = (500 × 20) / 100 = 100.
Subtract original value from new value, divide by original value, then multiply by 100. Formula: ((New - Old) / Old) × 100.
Divide your Total Marks Obtained by Maximum Possible Marks and multiply by 100. Example: 450/500 × 100 = 90%.
Yes! X% of Y is the same as Y% of X. So, 8% of 25 is hard, but 25% of 8 is easily 2.
Additional Information
Real Industry Uses
- Shopping: Calculate discount prices during sales (e.g., "Flat 40% OFF").
- Finance: Calculate GST (18%), Interest Rates, or ROI.
- Education: Convert CGPA to Percentage or check marks %.