Barely do math on my fingers :) But in all seriousness, this is similar to what I do with my fitbit. The program monitors all kinds of things. Like I was just looking at my increase in steps over the last 28 days compared to the 28 days before that and I'm up 12%. But it's re-configured everyday. I count how many days in a row I meet certain goals, be it total miles, total steps, total calories etc. I monitor my lifetime steps and predict how long before I reach my next 1 million steps etc. It does keep me motivated :) Keep doing whatever works!
Biking Syl likes this comment.