How do you calculate the percent difference?

To calculate the percent difference between two values, you first find the absolute difference between the two values by subtracting the smaller value from the larger one. Then, divide this absolute difference by the average of the two values. Finally, multiply the result by 100 to express it as a percentage. The formula for percent difference is: % difference = |(value 1 - value 2) / ((value 1 + value 2) / 2)| * 100.