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
Bill's Unreal T 73.14 Green Grandma 101.3 -2.5
-1.4
RobotOverlords 94.3 Ineedabeer! 105.84 -1.7
+0.2
Sarah's Team 110.2 Ashley's Team 79.62 -0.6
-0.3
Michael's Okay 83.3 Some Team 80.82 +0.5
-0.1
Replacements 60.24 marcus's Team 85.78 +0.2
-0.3
Week of 12/3100.0*Chance in playoffs100.0*Average seed
Ineedabeer! 87.74 Green Grandma 92.98 +0.1
Bill's Unreal T 35.96 Off Constantly 114.24 -0.1
RobotOverlords 80.42 Replacements 119.24 +0.1
If winner is:HomeAway
Week of 12/10100.0*Chance in playoffs100.0*Average seed
Bill's Unreal T vs Ashley's Team+1.1-0.0
RobotOverlords vs Some Team-0.7+0.2
Sarah's Team vs marcus's Team+0.2-0.2

What If

Chances based on how well the Bill's Unreal T finish out the regular season.   Explain

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789101112Count
71-0Out042153222,269,383
60-1Out15661985,175,617
Total:Out00116651987,445,000
Games Above .500
Chance Will Make Playoffs