1. What is a Percentage Difference Calculator?

Definition: This calculator measures the relative difference between two values as a percentage of their average.

Purpose: It helps compare two values to understand how much they differ relative to their average size.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( A \) — First value
• \( B \) — Second value
• The result is expressed as a percentage

Explanation: The absolute difference between values is divided by their average, then multiplied by 100 to get a percentage.

3. Importance of Percentage Difference

Details: This calculation is useful in science, engineering, finance, and statistics to compare measurements, prices, or performance metrics.

4. Using the Calculator

Tips: Enter any two numerical values. The calculator will show what percentage one value differs from another relative to their average.

5. Frequently Asked Questions (FAQ)

Q1: How is this different from percentage change?
A: Percentage change compares a new value to an old one, while percentage difference compares any two values symmetrically.

Q2: What does the result mean?
A: A 50% difference means the values differ by half their average size. 100% means one value is zero when the other isn't.

Q3: When should I use this calculation?
A: Use it when comparing two equally important values, like experimental results or product prices.

Q4: Can I compare negative numbers?
A: Yes, the absolute value ensures meaningful results even with negatives.

Q5: What if both values are zero?
A: The difference is undefined (0/0), so the calculator will show no result.