Indianapolis Colts Playoff Chances 2012 50/50

Beat Houston 28-16, average seed unchanged at 5
11-5-0   .688

How are these numbers calculated?

Big Games

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

Week of 12/13100.0*Chance in playoffs100.0*Average seed
Tennessee 14 NY Jets 10 +1.9
Houston 29 Indianapolis 17 -1.5
-0.6
Philadelphia 13 Cincinnati 34 -0.3
Atlanta 34 NY Giants 0 +0.2
Dallas 27 Pittsburgh 24 +0.2
San Diego 7 Carolina 31 +0.2
Buffalo 17 Seattle 50 -0.2
Arizona 38 Detroit 10 -0.2
St. Louis 22 Minnesota 36 +0.1
Cleveland 21 Washington 38 -0.1
Chicago 13 Green Bay 21 +0.1
Miami 24 Jacksonville 3 +0.1
Week of 12/22100.0*Chance in playoffs100.0*Average seed
Kansas City 13 Indianapolis 20 In
+0.1
Pittsburgh 10 Cincinnati 13 In
NY Jets 17 San Diego 27 -0.2
Green Bay 55 Tennessee 7 -0.1
Carolina 17 Oakland 6 +0.1
Detroit 18 Atlanta 31 -0.1
Week of 12/30None
Games Above .500
Chance Will Make Playoffs