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
Nick 115.5 Sam 159 +1.4
+1.0
Ryan 86.5 MikeBorr 64.5 +0.6
+0.1
Helms 94.5 Bill 144 -0.4
+0.1
Jordan 110 Clen 93.5 +0.4
+0.2
PJ 100.5 Beano 90 -0.1
-0.0
Alex 113.5 Dan 104 -0.1
Week of 11/22100.0*Chance in playoffs100.0*Average seed
Beano 83 Sam 117.5 In
+0.1
Nick 117 Ryan 99.5 -0.1
Week of 11/29100.0*Chance in playoffs100.0*Average seed
Ryan 92 Sam 142 +0.3
Nick 118 Jordan 119 +0.1
Helms 93.5 MikeBorr 113.5 +0.1
PJ 88.5 Bill 112 -0.1
Games Above .500
Chance Will Make Playoffs