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
Kevin 91.5 Dave 78.62 -4.3
-0.4
Campo 85.18 Nick 69.86 -3.0
-0.2
Goodman 54.68 Aaron 114.8 -1.1
-0.0
Chris/Jonny 110.14 Alex 126.68 -0.8
Neil 114.38 Cunje 120.04 +0.5
+0.1
Ross 83.14 Blair 78.42 +0.4
+0.1
Week of 11/29100.0*Chance in playoffs100.0*Average seed
Chris/Jonny 147.6 Dave 141.8 Out
-0.7
Neil 88.9 Campo 85.86 +1.9
-0.2
Kevin 95.82 Aaron 179.8 -1.6
Blair 94.74 Cunje 127.12 +0.3
+0.1
Ross 102.98 Alex 87.08 +0.2
Goodman 104.38 Nick 98.24 -0.1
If winner is:HomeAway
Week of 12/6100.0*Chance in playoffs100.0*Average seed
Ross vs Dave-0.3+0.8
Neil vs Goodman+0.2-0.4
Blair vs Alex-0.2+0.1

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789101112Count
51-0Out5613316,874,850
40-1Out653540,982,934
Total:Out218562457,857,784
Games Above .500
Chance Will Make Playoffs