How are these numbers calculated?

Big Games

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

Week of 11/15100.0*Chance in playoffs100.0*Average seed
Ryan 86.5 MikeBorr 64.5 +0.6
+0.2
Helms 94.5 Bill 144 -0.1
Jordan 110 Clen 93.5 +0.1
-0.1
Week of 11/22100.0*Chance in playoffs100.0*Average seed
PJ 77.5 Dan 106.5 +0.8
Nick 117 Ryan 99.5 Out
-0.1
Jordan 138 MikeBorr 159.5 -0.1
Helms 129.5 Clen 102.5 +0.1
Alex 95.5 Bill 129.5 +0.0
Week of 11/29100.0*Chance in playoffs100.0*Average seed
Ryan 92 Sam 142 -0.0
Games Above .500
Chance Will Make Playoffs