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
Amber 107.56 Jason 65.34 -13.4
-1.3
Josh 122.7 Bill 125.26 -3.4
-0.1
Garrett 139.86 Kellen 93.32 +2.0
+0.1
Mark 110.82 AJ 113.9 -0.8
-0.1
Tom 75.06 Joe 94.3 -0.7
Harry 95.78 Justin 88.5 -0.5
Week of 11/26100.0*Chance in playoffs100.0*Average seed
Justin 78.38 Jason 72.66 Out
-1.6
Harry 109.88 Mark 110.78 +4.3
+0.1
Bill 109.4 Joe 93.36 +3.9
+0.1
Garrett 96.98 AJ 93.82 +1.6
+0.2
Tom 146.36 Kellen 70.62 +1.6
-0.1
Amber 96.88 Josh 128.76 +0.2
+0.1
Week of 12/3100.0*Chance in playoffs100.0*Average seed
Joe 86.58 Jason 95.2 +0.5
Mark 110.42 Amber 70.5 +0.3
AJ 83.18 Justin 72.62 -0.3
Games Above .500
Chance Will Make Playoffs