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
Alex 101.12 Carlo 66.18 +12.5
+0.3
Tuck 62.44 Pepsin 107.54 -3.0
Chris 78.86 Fred 111.4 +2.0
Clib 172.98 Gallo 84.42 +0.3
-0.4
Week of 12/10100.0*Chance in playoffs100.0*Average seed
Alex 70.64 Chris 108.14 Out
-0.8
Gallo 85.88 Tuck 78.32 +0.5
Carlo 50.42 Pepsin 112.74 +0.5
Clib 96.32 Ryan 81.84 -0.4
Games Above .500
Chance Will Make Playoffs