How are these numbers calculated?

Big Games

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

Week of 11/16100.0*Chance in playoffs100.0*Average seed
Walter 101.26 Declan 60.88 +2.7
+1.2
Simon 82.92 Jack 99.62 +0.2
-0.1
Avi 88.92 Angel 74.84 -0.2
+0.1
Tyler 68.62 Tyrone 83.8 +0.2
Aidan 92.3 Holden 78.8 +0.1
+0.1
Busayo 52.22 Gerrit 74.5 -0.0
Week of 11/23100.0*Chance in playoffs100.0*Average seed
Walter 93.98 Angel 74.86 +4.9
+1.4
Aidan 45.3 Jack 106.52 -2.7
-0.1
Simon 105.72 Gerrit 82.32 -0.9
+0.1
Avi 101.44 Tyrone 96.08 -0.5
+0.0
Tyler 77.12 Holden 81.5 -0.3
If winner is:HomeAway
Week of 11/30100.0*Chance in playoffs100.0*Average seed
Jack vs TylerOut+3.5
-0.0+0.1
Tyrone vs WalterOut+1.1
-0.9+0.5
Declan vs Simon+1.0Out
+0.1-0.1
Holden vs Avi-0.4+0.2
-0.3+0.2
Gerrit vs Aidan-0.3+0.2
Angel vs Busayo-0.0+0.1

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789101112Count
71-03.0%3175523338,958,919
60-1Out12393712121,471,681
Total:1.9%2114029154060,430,600
Games Above .500
Chance Will Make Playoffs