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
Simon 82.92 Jack 99.62 +16.7
+1.2
Tyler 68.62 Tyrone 83.8 +0.9
+0.1
Walter 101.26 Declan 60.88 -0.4
-0.2
Busayo 52.22 Gerrit 74.5 -0.4
-0.1
Aidan 92.3 Holden 78.8 +0.3
+0.1
Avi 88.92 Angel 74.84 +0.2
+0.1
Week of 11/23100.0*Chance in playoffs100.0*Average seed
Aidan 45.3 Jack 106.52 +32.4
+1.2
Simon 105.72 Gerrit 82.32 -3.8
Avi 101.44 Tyrone 96.08 -1.5
-0.0
Tyler 77.12 Holden 81.5 -1.1
Walter 93.98 Angel 74.86 -0.8
Busayo 109.74 Declan 110.76 -0.0
If winner is:HomeAway
Week of 11/30100.0*Chance in playoffs100.0*Average seed
Jack vs Tyler+22.9-41.0
+0.5-0.9
Declan vs Simon+11.2-21.3
+0.2-0.3
Gerrit vs Aidan+6.0-3.3
+0.3-0.2
Tyrone vs Walter+0.9-0.5
+0.1-0.0
Holden vs Avi+0.4-0.2
+0.1-0.0

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789101112Count
81-090.3%42481038,783,509
70-126.42650203021,647,091
Total:67.4%27402471060,430,600
Games Above .500
Chance Will Make Playoffs