Dallas Cowboys Playoff Chances 50/50

Beat Washington 38-10, average seed up 0.9 to 2
12-5-0   .706

How are these numbers calculated?

Big Games

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

Week of 12/21100.0*Win Super Bowl100.0*Average seed
Miami 22 Dallas 20 -0.3
-0.3
San Francisco 19 Baltimore 33 +0.2
Philadelphia 33 NY Giants 25 -0.4
Week of 12/30100.0*Win Super Bowl100.0*Average seed
Washington 10 San Francisco 27 -0.6
-0.1
Dallas 20 Detroit 19 +0.3
+0.6
Philadelphia 31 Arizona 35 +0.2
+0.7
Week of 1/6100.0*Win Super Bowl100.0*Average seed
Washington 10 Dallas 38 +1.0
NY Giants 27 Philadelphia 10 +0.5
Detroit 30 Minnesota 20 -0.1
Games Above .500
Chance Will Make Playoffs