Buffalo Bills Playoff Chances 2014 50/50

Beat New England 17-9, average seed down 1.7 to 19
7-0-7   .500

How are these numbers calculated?

Big Games

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

Week of 12/11100.0*Average seed
Buffalo 21 Green Bay 13 -1.6
St. Louis 6 Arizona 12 -0.2
Chicago 15 New Orleans 31 +0.1
Cleveland 0 Cincinnati 30 -0.1
Kansas City 31 Oakland 13 +0.1
Indianapolis 17 Houston 10 -0.1
New England 41 Miami 13 -0.1
Baltimore 20 Jacksonville 12 +0.0
Week of 12/20100.0*Average seed
Oakland 26 Buffalo 24 +1.5
Cincinnati 37 Denver 28 +0.3
Chicago 14 Detroit 20 +0.2
Carolina 17 Cleveland 13 -0.1
Houston 25 Baltimore 13 -0.1
Arizona 6 Seattle 35 +0.0
St. Louis 27 NY Giants 37 -0.0
Week of 12/28100.0*Average seed
New England 9 Buffalo 17 -1.0
Atlanta 3 Carolina 34 +0.3
NY Giants 26 Philadelphia 34 -0.2
Miami 24 Chicago 37 -0.2
Houston 23 Jacksonville 17 -0.2
Baltimore 20 Cleveland 10 +0.0
Games Above .500
Chance Will Make Playoffs