Percentage Calculator Help
Getting Started
Our percentage calculator is designed to make your percentage calculations fast and accurate. Whether you're calculating discounts, tax, or growth rates, this tool simplifies the process. You can use it for personal finance, business analytics, academic purposes, or everyday calculations.
Simply input the numbers according to the calculation type, and the calculator will instantly provide the result. If you encounter any issues or need clarification on how to use specific features, this help section is here to guide you step-by-step.
Basic Calculations
1. Calculate Percentage of a Number
To find X% of Y:
(X ÷ 100) × Y = Result
Example: 20% of 500 = (20 ÷ 100) × 500 = 100
2. Percentage Increase/Decrease
Formula for change from Old to New value:
[(New - Old) ÷ Old] × 100 = % Change
Example: 50 → 75 = 50% increase
Advanced Features
Reverse Percentage Calculations
Find original number from percentage:
(Result × 100) ÷ Percentage = Original Number
Example: 25 is 20% of 125
Important Formatting Notes
- Use either dot (.) or comma (,) as decimal separator
- Do not use thousands separators
- Whole numbers can be entered without decimals
Troubleshooting Common Issues
- Red highlighted fields indicate invalid input
- Empty result field means calculation error
- Ensure all required fields are filled