How are these numbers calculated?

Big Games

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

Week of 11/17100.0*Chance in playoffs100.0*Average seed
Tom K 52.98 Riley 68.8 Out
-0.5
Laurel 94.74 Jenn 97.14 -0.1
Shara 71.8 Tom H 63.14 -0.0
+0.1
Ethan 111.1 Shawn 96.48 +0.0
Dave 93.34 Eric 88.58 -0.2
If winner is:HomeAway
Week of 11/24100.0*Chance in playoffs100.0*Average seed
Dave vs Tom H+0.2-0.3
Justin vs Tom K-0.1+0.3

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789101112Count
52-0Out021235501,683,665
41-1Out294416,606,110
30-2Out623831,849,633
Total:Out0002722550,139,408
Games Above .500
Chance Will Make Playoffs