Online Percentage Calculator - Free & Easy to Use

Calculate percentages, percentage changes, add/subtract percentages, and more with our free online percentage calculator. Perfect for math, finance, and everyday use.

What is X% of Y?
What % is X of Y?
Percentage Change
Add X% to Value
Subtract X% from Value

About Percentage Calculator

Our comprehensive online Percentage Calculator simplifies all your percentage-related calculations. Whether you need to find a percentage of a number, determine percentage change, or add/subtract percentages, this tool provides instant and accurate results for various scenarios.

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Key Features
  • Calculate X% of Y
  • Determine what percent X is of Y
  • Calculate percentage change between two values
  • Add a percentage to a number
  • Subtract a percentage from a number
  • User-friendly interface for quick calculations
How to Use the Percentage Calculator
  1. 1**Select Calculation Type:** Choose the specific percentage calculation you need (e.g., 'What is X% of Y?').
  2. 2**Enter Values:** Input the required numbers into the respective fields.
  3. 3**Get Result:** The calculator will instantly display the result. No need to click a separate 'Calculate' button for each section.
Why Use This Tool?
  • **Financial Planning:** Easily calculate discounts, taxes, interest rates, and profit margins.
  • **Academic Support:** Solve percentage problems for homework, exams, or research.
  • **Business Analysis:** Track sales growth, market share changes, or budget variances.
  • **Everyday Use:** Quickly figure out tips, price reductions, or ingredient proportions.
  • **Accuracy & Speed:** Get precise results instantly, saving time and reducing manual errors.
Common Use Cases
  • Calculating sales tax or discounts
  • Determining grade percentages
  • Analyzing stock price changes
  • Calculating tips at restaurants
  • Adjusting recipes based on percentage changes
Frequently Asked Questions

What is a percentage?

A percentage is a number or ratio expressed as a fraction of 100. It is often denoted using the percent sign '%', or the abbreviations 'pct.', 'pct', sometimes 'pc'.

How do I calculate percentage change?

Percentage change is calculated as ((New Value - Original Value) / Original Value) * 100. Our tool automates this for you.

Can I use this for negative numbers?

Yes, the calculator can handle negative numbers for most calculations, providing accurate results for various scenarios.