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.

Easy way to calculate time difference in Excel using simple logic. A simple formula to calculate difference between two dates & times in Excel.

This post will show you how to calculate the percentage difference between two numbers in Excel. using this formula you can find percentage difference easily.

How to Calculate the Balance on Goods. The balance on goods is the difference between the amount of goods that a country produces and its exports. When a country is a net exporter, it is said to ...

Calculating the average percentage difference To come up with the average percentage difference over time, you'll need to build a time series of data.