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
Tom 75.06 Joe 94.3 +18.3
+0.8
Amber 107.56 Jason 65.34 +2.8
+0.1
Josh 122.7 Bill 125.26 -2.4
Harry 95.78 Justin 88.5 +0.7
Garrett 139.86 Kellen 93.32 +0.3
+0.1
Mark 110.82 AJ 113.9 -0.2
Week of 11/26100.0*Chance in playoffs100.0*Average seed
Bill 109.4 Joe 93.36 -19.3
-1.2
Harry 109.88 Mark 110.78 +3.4
Tom 146.36 Kellen 70.62 +1.7
+0.2
Justin 78.38 Jason 72.66 +0.7
+0.0
Amber 96.88 Josh 128.76 -0.4
-0.1
Garrett 96.98 AJ 93.82 +0.2
+0.0
Week of 12/3100.0*Chance in playoffs100.0*Average seed
Joe 86.58 Jason 95.2 -53.2
-1.6
AJ 83.18 Justin 72.62 +11.3
+0.3
Harry 125.26 Tom 96.36 -6.2
-0.2
Garrett 104.22 Bill 83.56 +0.5
+0.1
Josh 113.54 Kellen 138.98 +0.1
-0.5
Games Above .500
Chance Will Make Playoffs