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
Chris/Jonny 107.28 Ross 164.88 -10.9
-1.0
Campo 133.78 Dave 99.7 +1.0
Nick 134.94 Cunje 139.94 -1.0
Goodman 58.38 Alex 81.66 -0.4
-0.0
Neil 114.62 Aaron 118.46 +0.4
+0.1
Kevin 128.46 Blair 86.92 +0.3
-0.0
If winner is:HomeAway
Week of 11/15100.0*Chance in playoffs100.0*Average seed
Chris/Jonny vs Blair+8.6-17.4
+0.6-1.1
Campo vs Aaron+3.0-3.0
+0.1-0.1
Neil vs Nick-3.7+1.8
Kevin vs Alex+0.9-1.9
+0.0-0.1
Goodman vs Dave+1.8-0.5
+0.1-0.0
Ross vs Cunje-0.9+0.6

What If

Chances based on how well the Chris/Jonny finish out the regular season.   Explain

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789101112Count
94-0In7583052,875,723
83-199.9%083038213008,357,295
72-271.40172637236008,942,800
61-34.20041834331014,160,732
50-4Out022439350718,082
Total:71.0%1914161615118631025,054,632
Games Above .500
Chance Will Make Playoffs