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
Brockett 94.1 Illgen 106 -1.5
-0.2
Crump 110.8 Shroff 119.6 +1.1
Larson 116.3 Mendoza 132 +0.6
+0.1
Alter 79.3 Swikart 128.4 +0.3
Del Cueto 107.9 Swords 116.1 -0.3
+0.1
If winner is:HomeAway
Week of 11/27100.0*Chance in playoffs100.0*Average seed
Alter vs Brockett-0.7In
-0.3+0.3
Larson vs CrumpIn-0.7
-0.2+0.2
Keating vs Del Cueto+0.2-0.2

What If

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

100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456Count
82-0In831711,074,176
71-1In32492021,193,869
60-297.2%21976310,152,987
Total:99.3%383328142,421,032
Games Above .500
Chance Will Make Playoffs