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
Avi 88.92 Angel 74.84 +20.9
+1.1
Tyler 68.62 Tyrone 83.8 +2.1
+0.1
Busayo 52.22 Gerrit 74.5 -1.8
-0.1
Aidan 92.3 Holden 78.8 +0.9
-0.1
Simon 82.92 Jack 99.62 +0.7
+0.1
Walter 101.26 Declan 60.88 -0.6
Week of 11/23100.0*Chance in playoffs100.0*Average seed
Avi 101.44 Tyrone 96.08 +18.8
+0.9
Aidan 45.3 Jack 106.52 -2.6
+0.1
Tyler 77.12 Holden 81.5 -2.4
-0.1
Simon 105.72 Gerrit 82.32 -0.9
-0.1
Walter 93.98 Angel 74.86 -0.4
Busayo 109.74 Declan 110.76 -0.3
-0.1
If winner is:HomeAway
Week of 11/30100.0*Chance in playoffs100.0*Average seed
Declan vs SimonIn-4.2
Holden vs Avi-4.2In
-0.8+0.8
Jack vs Tyler-4.2In
-0.1+0.1
Gerrit vs Aidan+4.2-4.2
+0.3-0.3

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789101112Count
91-0In455409,642,105
80-191.5%30303189,643,823
Total:95.8%23421516419,285,928
Games Above .500
Chance Will Make Playoffs