How are these numbers calculated?

Big Games

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

Week of 11/19100.0*Chance in playoffs100.0*Average seed
Josh 122.7 Bill 125.26 +20.8
+1.2
Amber 107.56 Jason 65.34 +2.9
+0.1
Garrett 139.86 Kellen 93.32 +2.7
+0.1
Harry 95.78 Justin 88.5 +2.2
+0.1
Tom 75.06 Joe 94.3 -0.5
Mark 110.82 AJ 113.9 +0.3
Week of 11/26100.0*Chance in playoffs100.0*Average seed
Bill 109.4 Joe 93.36 In
+1.2
Harry 109.88 Mark 110.78 +3.8
Tom 146.36 Kellen 70.62 +2.5
+0.1
Amber 96.88 Josh 128.76 -0.5
-0.1
Garrett 96.98 AJ 93.82 -0.1
Justin 78.38 Jason 72.66 +0.1
Week of 12/3100.0*Chance in playoffs100.0*Average seed
Josh 113.54 Kellen 138.98 +0.5
Garrett 104.22 Bill 83.56 -0.4
Joe 86.58 Jason 95.2 +0.2
AJ 83.18 Justin 72.62 -0.2
Games Above .500
Chance Will Make Playoffs