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 -19.5
-1.0
PJ 100.5 Beano 90 -4.4
-0.2
Alex 113.5 Dan 104 -3.8
-0.1
Helms 94.5 Bill 144 -2.3
Jordan 110 Clen 93.5 +1.8
+0.1
Nick 115.5 Sam 159 -0.4
Week of 11/22100.0*Chance in playoffs100.0*Average seed
Jordan 138 MikeBorr 159.5 +22.0
+1.0
PJ 77.5 Dan 106.5 +5.2
+0.2
Alex 95.5 Bill 129.5 +1.6
+0.1
Helms 129.5 Clen 102.5 +0.7
Nick 117 Ryan 99.5 +0.1
Week of 11/29100.0*Chance in playoffs100.0*Average seed
Helms 93.5 MikeBorr 113.5 +27.6
+1.1
PJ 88.5 Bill 112 +17.7
+0.1
Alex 116.5 Clen 97 +0.6
Games Above .500
Chance Will Make Playoffs