10 chapters released over a 1 week a period of time is 10 chapters per week.
10 chapters released over four weeks is 2.5 chapters per week.
To get the true statistic for chapters released per week for every story you need to made the formula Total chapters written / Total days of Since release = X * 30 = Y / 4 = Chapters per week.
So in my case 10 / 6 = 1.66 *30 =49.8 / 4 = 12 chapters per week.
If I then wrote no chapters for the next week.
10 / 14 = 0.71 *30 =21 / 4 = 5 chapters per week.
As I said, the statistic is currently being calculated in a way that doesn't accurately capture how authors are writing. I wasn't trying to get information about how it is coded right now.
The "at a glance" statistic is coded the way it is because it is supposed to reflect how often the author is publishing
recently.
This is so stories that used to be prolific, but then are basically drop will show 0 chapters/week, so readers can tell in a glance that it isn't being updated.
I mean sure, Tony can reword it so it says chapters/week in the last 30 days, but that's really wordy and ruins the point of having the quick stats.
That being said, the issue of having the stat out of 30 days right in the beginning will cause a lower than expected value is valid and should be addressed, although you do run into the issue of: The writer publishes one chapter in the first day. Are we going to assume that the writer will do this every day, and put 7 chapters per week?
As for your second issue, well, can't tell without further info. I'm going to assume that this is for your adventum contest entry?