How are these numbers calculated?

Big Games

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

Week of 10/27100.0*Chance in playoffs100.0*Average seed
Phil 66.2 Derek 95.3 +12.2
+0.9
Jaylen 73.9 Mitch 80.6 +1.3
Kyle 136.2 John 97.4 +0.6
AndrewF 59.5 BenG 60.8 +0.5
Ryan 92.1 Manj 94.8 -0.4
AndrewL 93.1 BenF 76 +0.3
If winner is:HomeAway
Week of 11/3100.0*Chance in playoffs100.0*Average seed
Derek vs Jaylen+11.5-11.5
+0.8-0.8
John vs Phil-1.6+1.6
-0.1+0.1
BenF vs Ryan-1.3+1.3
-0.1+0.1
Mitch vs BenG+1.2-1.2
Manj vs AndrewF+1.1-1.1
AndrewL vs Kyle-0.7+0.7
+0.1-0.1

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789101112Count
105-0In494930283,423
94-1In115728401,406,906
83-2100.0%116403391002,810,104
72-388.4005213527102002,806,973
61-414.3002123033184001,403,641
50-50.00183150100283,689
Total:79.8%316191814118642008,994,736
Games Above .500
Chance Will Make Playoffs