Percentage Calculator

Calculate percentages, increases, decreases, differences, and more

Solution for:

Step-by-Step Solution
Select a calculation type and enter values
SELECT CALCULATION TYPE

Examples to try:

Comprehensive Guide to Using the Percentage Calculator

Percentages are used in everyday life for calculating discounts, interest rates, statistics, and many other applications. Our percentage calculator helps you solve all common percentage problems with step-by-step solutions.

What Can the Percentage Calculator Do?

This calculator handles all major percentage calculations:

  1. Percentage of a number: What is X% of Y?
  2. Percentage calculation: X is what percent of Y?
  3. Percentage increase: X increased by Y%
  4. Percentage decrease: X decreased by Y%
  5. Percentage difference: % difference between X and Y
  6. Percentage change: % change from X to Y

How to Use the Percentage Calculator

  1. Select calculation type: Choose what you want to calculate
  2. Enter values: Input the required numbers
  3. Click Calculate: Get the result with detailed step-by-step solution

Common Percentage Formulas

The calculator uses these standard percentage formulas:

  • Percentage of: (X/100) × Y
  • X is what % of Y: (X/Y) × 100
  • Percentage increase: X × (1 + Y/100)
  • Percentage decrease: X × (1 - Y/100)
  • Percentage difference: (|X-Y|/((X+Y)/2)) × 100
  • Percentage change: ((Y-X)/X) × 100

Understanding the Results

The calculator provides several outputs:

  • Calculation Preview: Shows your input in mathematical notation
  • Result: The solution to your percentage problem
  • Additional Information: Related calculations when applicable
  • Step-by-Step Solution: Detailed explanation of the calculation

Practical Applications

Percentage calculations are used in many real-world situations:

  1. Calculating discounts and sale prices
  2. Determining tax amounts
  3. Calculating tips at restaurants
  4. Analyzing test scores and grades
  5. Calculating interest rates
  6. Measuring growth rates

Tips for Effective Use

  • Make sure you've selected the correct calculation type
  • Double-check your input values
  • Review the step-by-step solution to understand the calculation
  • Use the example buttons to quickly test common calculations
  • For financial calculations, consider using our financial calculators

Limitations

While comprehensive, the calculator has some limitations:

  • Only handles simple percentage calculations
  • Doesn't handle compound percentage changes
  • For complex financial percentages, use specialized calculators

Conclusion

Our percentage calculator provides a convenient way to solve all common percentage problems while learning the underlying concepts. Whether you're calculating a discount, determining a grade, or analyzing data, this tool can save time and ensure accuracy.