Dallas Cowboys Playoff Chances 2016 50/50

Beat Tampa Bay 26-20, average seed up 0.3 to 1.2
12-2-0   .857

How are these numbers calculated?

Big Games

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

Week of 12/15100.0*Average seed
Dallas 26 Tampa Bay 20 +0.4
NY Giants 17 Detroit 6 -0.2
If winner is:HomeTieAway
Week of 12/22100.0*Average seed
Dallas vs Detroit+0.2+0.2-0.2
Philadelphia vs NY Giants+0.2+0.2-0.2

What If

Chances based on how well the Dallas finish out the regular season.   Explain

100100100100100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-L-Tplayoffs12345678910111213141516Count
12.5-14In10039,654,894,095*
120-2-0In752513,206,875,729
Total:In94652,861,769,824

* Row combines multiple less frequent records.

Games Above .500
Chance Will Make Playoffs