Question: Is there a way to represent the total percent change of multiple numbers (make it into one number that represents change) that isn't just the percent change between the first and last number of the set?
So I know percent change is new-old/old * 100. But that is just for 2 numbers. Is there a kind of percent change formula that represents the average change of a set of data. I can't seem to find something solid after some research. Someone recommended moving average to a similar question but I'm not sure that is the best way.
Possible Solution: I've tried the literal average of percent changes but there is a reason I don't think that fairly represents the improvement of the set of data. For example if you have the numbers 10, 7, 2, 5, 4 the percent changes between these numbers are-> -30, -71, 150, -20. The average of these 4 changes is 7.25. 3 out of the 4 changes are decreases and only 1 is an increase but the average makes it seem like there was a average increase just because the jump from 2 to 5 was larger than the decreases added together. So is there a better way to represent the average/total change?