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
Greg 89.5 Dan 107.5 +0.3
+0.5
Forrest 88.5 Kaitlyn 62.5 +0.1
Mark Sellers 141.5 Tom 72.5 +0.1
Doug 76 Lisa 83 -0.3
Week of 11/24100.0*Chance in playoffs100.0*Average seed
Forrest 120.5 Dan 102 Out
-0.7
Kelsey 92 Tom 109.5 -1.2
-0.1
Mark Sellers 92.5 Kaitlyn 91.5 -1.0
+0.1
Greg 112.5 Lisa 108 -0.1
+0.1
If winner is:HomeAway
Week of 12/1100.0*Chance in playoffs100.0*Average seed
Dan vs Mark Sellers+0.9-0.4
Kaitlyn vs Kelsey-0.2+0.1
Lisa vs Forrest-0.1+0.1

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-L-Tplayoffs123456789101112Count
51-0-0Out47381514,618,911
40-1-0Out10035,520,497
Total:Out14117550,139,408
Games Above .500
Chance Will Make Playoffs