How are these numbers calculated?

Big Games

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

Week of 11/20100.0*Chance in playoffs100.0*Average seed
Alter 79.3 Swikart 128.4 -2.9
-0.2
Del Cueto 107.9 Swords 116.1 +2.5
+0.1
Larson 116.3 Mendoza 132 +0.4
Crump 110.8 Shroff 119.6 +0.3
+0.1
If winner is:HomeAway
Week of 11/27100.0*Chance in playoffs100.0*Average seed
Alter vs Brockett+0.1-0.1
Larson vs Crump+0.1-0.1

What If

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

100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456Count
52-0Out28729,746,524
41-1Out29821,164,159
30-2Out10011,510,349
Total:Out79342,421,032
Games Above .500
Chance Will Make Playoffs