Relative Difference Calculator

Formula

The formula to calculate the Relative Difference (RD) is:

\[ RD = \left( \frac{|V1 - V2|}{\frac{V1 + V2}{2}} \right) \times 100\% \]

Where:

\(RD\) is the relative difference (%)
\(V1\) is the first value
\(V2\) is the second value

What is Relative Difference?

Relative difference is a measure of how much two numbers differ from each other relative to their average size. It is often expressed as a percentage to provide a scale-independent measure of difference. This is particularly useful when comparing differences between numbers that are on different scales or magnitudes.

Example Calculation

Let's assume the following values:

First Value (V1) = 100
Second Value (V2) = 80

Using the formula to calculate the Relative Difference (RD):

\[ RD = \left( \frac{|100 - 80|}{\frac{100 + 80}{2}} \right) \times 100\% = \left( \frac{20}{90} \right) \times 100\% \approx 22.22\% \]

The Relative Difference (RD) is approximately 22.22%.