🚀 go-pugleaf

If you get a bill from Detroit Edison, you may have noticed the section at
the bottom where it lists your average daily electricity consumption (in Kwh
per day, a strange unit for power).  It also lists the percentage increase
or decrease from the same period the previous year.

You may want to disregard the percent change figure.  Integer roundoff
errors make it pretty much useless.  For example, my latest bill lists it as
22%, but the correct figure is actually 28%.

With arithmetic like that, I wonder how accurate their calculations are for
arriving at the amount of money I owe them.