How are these numbers calculated?

Big Games

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

Week of 11/29100.0*Chance in playoffs100.0*Average seed
Riv 96.7 Tosti 83.2 +9.6
+0.6
Beckel 77 Sean 103.5 +1.2
+0.1
Fat 100.7 James 87.3 +0.8
Brian 91.6 Miller 55.1 +0.7
Paulo 90.5 Mike 88.9 -0.4
If winner is:HomeAway
Week of 12/6100.0*Chance in playoffs100.0*Average seed
Riv vs James+0.2-0.2
Beckel vs Coyle+0.1-0.1
Brian vs Mike-0.1+0.1

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789101112Count
102-0In25754,180,001
91-1In9648,349,508
80-2In58424,183,627
Total:In6811316,713,136
Games Above .500
Chance Will Make Playoffs