How are these numbers calculated?

Big Games

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

Week of 11/8100.0*Chance in playoffs100.0*Average seed
Goodman 58.38 Alex 81.66 +5.7
+0.3
Neil 114.62 Aaron 118.46 +4.6
+0.1
Campo 133.78 Dave 99.7 +4.3
+0.1
Chris/Jonny 107.28 Ross 164.88 -1.0
Kevin 128.46 Blair 86.92 +0.5
+0.0
Nick 134.94 Cunje 139.94 -0.3
If winner is:HomeAway
Week of 11/15100.0*Chance in playoffs100.0*Average seed
Kevin vs Alex-8.1+17.1
-0.5+1.1
Neil vs Nick-4.3+2.1
Goodman vs Dave+3.9-1.2
+0.2-0.1
Ross vs Cunje-2.1+1.5
Chris/Jonny vs Blair-0.2+0.4
Campo vs Aaron+0.2-0.2

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789101112Count
94-0In21433231,347,829
83-1100.0%07384212106,197,652
72-286.802153930112009,772,757
61-315.900214303217406,322,128
50-40.001722323701,414,266
Total:68.0%1412171916129632025,054,632
Games Above .500
Chance Will Make Playoffs