How are these numbers calculated?

Big Games

How we did last week and who we should root for this week.   Explain

Week of 12/7100.0*Average seed
Torts 15 Elmo 19 -0.2
Idiots 18 Heinz 18 -0.1
Bills 15 Toppers 15 +0.0
Week of 12/14None

What If

Chances based on how well the Torts finish out the regular season.   Explain

If finish:Chance inChance will finish regular season at seed

* Row combines multiple less frequent records.

Games Above .500
Chance Will Make Playoffs