How are these numbers calculated?

Big Games

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

Week of 11/24100.0*Chance in playoffs100.0*Average seed
Justin 92.66 Tom K 89.34 +22.9
+1.2
Laurel 111.2 Riley 84.2 +9.5
+0.1
Jenn 75.58 Eric 99.54 +9.3
+0.2
Erica 60.14 Ethan 78 +6.1
+0.2
Shara 89.14 Shawn 94.36 +1.8
+0.1
Week of 12/1100.0*Chance in playoffs100.0*Average seed
Justin 101.08 Shawn 89.04 +1.0
Games Above .500
Chance Will Make Playoffs