Percentage Difference
Calculate percentage changes, differences, discounts, tips, and more. Get detailed explanations with step-by-step formulas and real-world examples for all your percentage calculations.
Basic Percentage Calculator
Calculate "What is X% of Y?" or "X is what % of Y?"
Quick Examples
Result
How it's calculated
25% of 200 equals 50
Percentage Guide
Basic Formulas
Percentage Types
Quick Tips
- • 50% = half, 25% = quarter, 10% = tenth
- • To find 10%, move decimal point left once
- • 100% increase = doubling the value
- • 50% decrease = halving the value
- • Percentages are reversible: 20% of 50 = 50% of 20
Common Uses
- • Sales discounts and markups
- • Tax calculations
- • Tips and service charges
- • Interest rates and returns
- • Grade and test scores
- • Statistical analysis
Recent Calculations
Quick Reference
Percentage Difference Calculator Answers
What does the percentage difference calculator do?
It calculates the percentage difference between two numbers, showing how much they differ relative to their average value.
How is percentage difference different from percentage change?
Percentage difference measures the relative difference between two values regardless of direction, while percentage change shows the increase or decrease from one value to another.
When should I use percentage difference?
Use it when comparing two values without implying which one is the original or new value, such as in scientific experiments, statistics, and comparing data sets.
Is the calculator suitable for all number types?
Yes. It works with positive, negative, and decimal numbers to provide an accurate percentage difference.