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*Chance in playoffs100.0*Average seed
Idiots 18 Heinz 18 +19.2
+0.6
Crunch 18 Lords 18 +1.7
+0.1
Hardline 28 Poofs 6 +0.5
+0.3
Ultra 32 Cats 7 -0.1
Bills 15 Toppers 15 +0.1
If winner is:HomeTieAway
Week of 12/14100.0*Chance in playoffs100.0*Average seed
Lords vs Torts-12.8InIn
-0.2+0.2+0.2
Heinz vs HardlineInIn-12.8
+1.5+1.5-1.5
Toppers vs UltraIn-11.6-11.6
+0.2-0.2-0.2

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-L-Tplayoffs123456789101112Count
7.5-8In1006,221,617*
70-1-075.0%2550255,919,065
Total:87.8%5112241212,140,682

* Row combines multiple less frequent records.

Games Above .500
Chance Will Make Playoffs