How are these numbers calculated?

Big Games

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

Week of 11/19100.0*Chance in playoffs100.0*Average seed
Blake 113.52 Gravy 116.64 +3.1
+1.0
Brad 115.76 Dan 96.04 -2.3
+0.2
Niphon 82.52 Chris 122.84 -1.8
+0.1
Kashif 87.34 Jon 98.52 +0.2
+0.3
Luke 210.76 Josh 95.96 -0.1
Week of 11/26100.0*Chance in playoffs100.0*Average seed
Blake 100.24 Chris 91.62 In
-0.1
Luke 127.34 Gravy 120.74 -0.2
-0.9
Niphon 135.52 Jon 94.84 -0.1
If winner is:HomeAway
Week of 12/3100.0*Chance in playoffs100.0*Average seed
Brad vs Gravy-1.0+0.5
Kashif vs Blake-0.1+0.1
James vs Dan+0.1-0.1
Luke vs Niphon+0.1-0.1

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789101112Count
91-0In215632053,893,847
80-1In841401229,691,953
Total:In110442814483,585,800
Games Above .500
Chance Will Make Playoffs