How are these numbers calculated?

Big Games

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

Week of 11/22100.0*Chance in playoffs100.0*Average seed
Ross 83.14 Blair 78.42 -10.8
-0.8
Campo 85.18 Nick 69.86 -2.9
-0.2
Neil 114.38 Cunje 120.04 +1.3
+0.1
Goodman 54.68 Aaron 114.8 -0.7
-0.0
Chris/Jonny 110.14 Alex 126.68 +0.4
Kevin 91.5 Dave 78.62 +0.2
+0.1
Week of 11/29100.0*Chance in playoffs100.0*Average seed
Blair 94.74 Cunje 127.12 Out
-0.3
Ross 102.98 Alex 87.08 +1.8
+0.1
Chris/Jonny 147.6 Dave 141.8 -0.4
+0.1
Neil 88.9 Campo 85.86 -0.3
-0.1
If winner is:HomeAway
Week of 12/6100.0*Chance in playoffs100.0*Average seed
Ross vs Dave+0.2-0.5
Blair vs Alex+0.2-0.1

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789101112Count
51-0Out98220,555,386
40-1Out712937,302,398
Total:Out802057,857,784
Games Above .500
Chance Will Make Playoffs