How are these numbers calculated?

Big Games

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

Week of 11/27100.0*Chance in playoffs100.0*Average seed
Shane 159.55 Chris 142.45 -5.2
-0.5
Matt P 149.1 Jerry 166.7 -1.9
+0.1
Eric 139 Frank 161.3 +0.3
+0.2
Doug 236.7 Buzz 113.93 +0.1
Week of 12/4100.0*Chance in playoffs100.0*Average seed
Chris 89.5 Jerry 134.2 -0.5
Frank 232.6 Buzz 93.95 +0.1
If winner is:HomeAway
Week of 12/11100.0*Chance in playoffs100.0*Average seed
Chris vs Buzz+0.8-0.7
Matt P vs Shane-0.3+0.3

What If

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

100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs12345678910Count
41-0Out752556,556,778
30-1Out257556,565,942
Total:Out372538113,122,720
Games Above .500
Chance Will Make Playoffs