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 +6.5
+1.1
PJ 100.5 Beano 90 -1.4
-0.1
Alex 113.5 Dan 104 -1.2
-0.1
Jordan 110 Clen 93.5 +0.6
+0.2
Helms 94.5 Bill 144 -0.6
Ryan 86.5 MikeBorr 64.5 +0.5
+0.1
Week of 11/22100.0*Chance in playoffs100.0*Average seed
Beano 83 Sam 117.5 In
+0.7
PJ 77.5 Dan 106.5 +0.1
+0.1
Jordan 138 MikeBorr 159.5 -0.1
Nick 117 Ryan 99.5 -0.2
Alex 95.5 Bill 129.5 -0.1
Week of 11/29100.0*Chance in playoffs100.0*Average seed
Ryan 92 Sam 142 +0.6
Nick 118 Jordan 119 +0.2
PJ 88.5 Bill 112 -0.2
Helms 93.5 MikeBorr 113.5 +0.2
Games Above .500
Chance Will Make Playoffs