How are these numbers calculated?

Big Games

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

Week of 11/26100.0*Chance in playoffs100.0*Average seed
Sarah's Team 110.2 Ashley's Team 79.62 +16.0
+1.1
George Patton H 85.28 Off Constantly 86.32 -2.8
-0.1
Bill's Unreal T 73.14 Green Grandma 101.3 +2.4
+0.2
Replacements 60.24 marcus's Team 85.78 +2.2
RobotOverlords 94.3 Ineedabeer! 105.84 -2.0
Michael's Okay 83.3 Some Team 80.82 +1.8
Week of 12/3100.0*Chance in playoffs100.0*Average seed
Michael's Okay 96.42 Sarah's Team 55.68 -23.7
-1.2
RobotOverlords 80.42 Replacements 119.24 -5.9
-0.1
Ineedabeer! 87.74 Green Grandma 92.98 +4.5
+0.2
Some Team 128.82 marcus's Team 70.1 +1.0
Bill's Unreal T 35.96 Off Constantly 114.24 -0.3
George Patton H 118 Ashley's Team 114.94 +0.1
If winner is:HomeAway
Week of 12/10100.0*Chance in playoffs100.0*Average seed
Sarah's Team vs marcus's Team+20.8Out
+1.3-1.3
Ineedabeer! vs Replacements-3.9+3.9
-0.1+0.1
RobotOverlords vs Some Team+3.3-3.3
+0.2-0.2
Michael's Okay vs George Patton H-2.0+2.0
-0.2+0.3
Bill's Unreal T vs Ashley's Team-0.2+0.2

What If

Chances based on how well the Sarah's Team finish out the regular season.   Explain

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789101112Count
81-041.5%413519512,215,486
70-1Out31431371512,216,050
Total:20.7%2119171819824,431,536
Games Above .500
Chance Will Make Playoffs