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 -4.2
-1.0
PJ 100.5 Beano 90 -1.1
-0.1
Alex 113.5 Dan 104 -1.0
Jordan 110 Clen 93.5 +0.5
+0.2
Helms 94.5 Bill 144 -0.5
Ryan 86.5 MikeBorr 64.5 +0.4
+0.1
Week of 11/22100.0*Chance in playoffs100.0*Average seed
Nick 117 Ryan 99.5 +5.2
+1.1
Jordan 138 MikeBorr 159.5 -2.0
-0.1
PJ 77.5 Dan 106.5 +1.8
+0.2
Alex 95.5 Bill 129.5 +0.9
-0.1
Helms 129.5 Clen 102.5 +0.2
Beano 83 Sam 117.5 -0.2
Week of 11/29100.0*Chance in playoffs100.0*Average seed
Nick 118 Jordan 119 -0.8
Alex 116.5 Clen 97 In
PJ 88.5 Bill 112 In
-0.2
Helms 93.5 MikeBorr 113.5 +0.2
Ryan 92 Sam 142 -0.2
Games Above .500
Chance Will Make Playoffs