How are these numbers calculated?

Big Games

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

Week of 12/3100.0*Chance in playoffs100.0*Average seed
Tuck 62.44 Pepsin 107.54 +9.8
+0.8
Alex 101.12 Carlo 66.18 -6.0
+0.0
Clib 172.98 Gallo 84.42 -3.4
-0.1
Chris 78.86 Fred 111.4 +0.3
+0.2
Week of 12/10100.0*Chance in playoffs100.0*Average seed
Carlo 50.42 Pepsin 112.74 In
+1.0
Gallo 85.88 Tuck 78.32 +0.2
+0.3
Games Above .500
Chance Will Make Playoffs