To calculate the average percentage difference over time, you'll need to build a time series of data. The starting point is the price information for each date on which you're producing an average.

How to use the average percentage difference The meaning of the average percentage difference depends on the nature of the two numbers involved in the calculation.

Below, we'll go through the basics of how to calculate average percentage differences as well as providing some insight into how to interpret the results. Calculating the average percentage difference ...

In this KS2 Maths article you'll learn how to calculate a type of average called the mean. We also have KS2 videos, a quiz and lots of examples.