Percentage Calculator
Calculate percentage increases, percentage decreases, discounts, and "what is X% of Y" calculations.
What is X% of Y?
About Percentage Calculator
Solve everyday percentage math equations instantly. Calculate: What is X% of Y, X is what percent of Y, percentage increase/decrease from A to B, and final price after retail discounts.
How to Use Percentage Calculator
Choose the calculation tab you need (Percentage Of, Percentage Change, Discount).
Input the numeric values.
The answer and formula step breakdown display automatically.
Supported Formats & Limits
- Supported Inputs: NUMERIC
- Guest Maximum Size: 25 MB
- Logged-in Max Size: 100 MB
- System Compatibility: Windows, macOS, Linux, iOS & Android
Privacy & Security Guarantee
This tool processes your files entirely inside your web browser using client-side JavaScript, WebAssembly, and Canvas APIs. Your document is never uploaded to any external server, guaranteeing total confidentiality.
Frequently Asked Questions
How do I calculate a percentage discount?
Enter the original price and discount percentage; the calculator displays both the amount saved and final payable price.