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 -22.7
-1.1
Busayo 52.22 Gerrit 74.5 -2.2
-0.1
Tyler 68.62 Tyrone 83.8 +2.1
+0.1
Avi 88.92 Angel 74.84 -1.5
-0.1
Walter 101.26 Declan 60.88 -0.6
Aidan 92.3 Holden 78.8 +0.4
-0.1
Week of 11/23100.0*Chance in playoffs100.0*Average seed
Simon 105.72 Gerrit 82.32 +29.4
+1.3
Aidan 45.3 Jack 106.52 -6.5
-0.1
Avi 101.44 Tyrone 96.08 -3.8
-0.1
Tyler 77.12 Holden 81.5 -2.0
-0.1
Walter 93.98 Angel 74.86 -1.1
Busayo 109.74 Declan 110.76 -0.3
If winner is:HomeAway
Week of 11/30100.0*Chance in playoffs100.0*Average seed
Declan vs Simon-36.9+36.9
-1.0+1.0
Jack vs Tyler-13.1+13.1
-0.2+0.2
Gerrit vs Aidan+3.9-3.9
+0.2-0.2
Tyrone vs Walter+1.0-1.0
+0.1-0.1
Holden vs Avi+0.1-0.1

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789101112Count
81-091.9%20383489,641,934
70-118.1184528819,643,994
Total:55.0%10192627144019,285,928
Games Above .500
Chance Will Make Playoffs