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 +16.3
+1.0
Goodman 58.38 Alex 81.66 -1.7
-0.1
Nick 134.94 Cunje 139.94 -1.4
-0.1
Kevin 128.46 Blair 86.92 +1.3
+0.1
Campo 133.78 Dave 99.7 +0.9
If winner is:HomeAway
Week of 11/15100.0*Chance in playoffs100.0*Average seed
Ross vs Cunje+16.1-16.1
+1.1-1.1
Neil vs Nick-1.7+1.7
Campo vs Aaron+1.7-1.7
+0.1-0.1
Goodman vs Dave+1.6-1.6
+0.1-0.1
Chris/Jonny vs Blair-1.2+1.2
-0.1+0.1
Kevin vs Alex+1.1-1.1
+0.1-0.1

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789101112Count
94-0In1863171523,731
83-1100.0%0193831111002,086,125
72-287.2005203428112003,129,313
61-314.100212303218512,088,769
50-40.00052539310523,606
Total:67.5%191215161412964208,351,544
Games Above .500
Chance Will Make Playoffs