Philadelphia Eagles Playoff Chances 2014 50/50

Beat NY Giants 34-26, average seed down 1.2 to 27
9-0-5   .643

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
Philadelphia 27 Dallas 38 +1.6
New England 41 Miami 13 +0.1
St. Louis 6 Arizona 12 +0.1
Buffalo 21 Green Bay 13 -0.1
Seattle 17 San Francisco 7 +0.1
Baltimore 20 Jacksonville 12 +0.0
Week of 12/20100.0*Average seed
San Francisco 35 Philadelphia 38 -1.5
Chicago 14 Detroit 20 +0.1
Cincinnati 37 Denver 28 -0.1
Houston 25 Baltimore 13 +0.1
Carolina 17 Cleveland 13 -0.1
Arizona 6 Seattle 35 -0.0
Week of 12/28100.0*Average seed
NY Giants 26 Philadelphia 34 -1.3
San Francisco 20 Arizona 17 -0.3
Denver 47 Oakland 17 +0.3
New England 9 Buffalo 17 -0.2
Indianapolis 12 Dallas 28 -0.1
Houston 23 Jacksonville 17 +0.1
Green Bay 30 Detroit 20 -0.1
Atlanta 3 Carolina 34 -0.1
Games Above .500
Chance Will Make Playoffs