Indianapolis Colts Playoff Chances 2012-Final 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 +2.0
Houston 29 Indianapolis 17 -1.5
-0.6
Cincinnati 34 Philadelphia 13 -0.3
Seattle 50 Buffalo 17 -0.1
Minnesota 36 St. Louis 22 +0.1
Arizona 38 Detroit 10 -0.1
Atlanta 34 NY Giants 0 +0.1
Carolina 31 San Diego 7 +0.1
Green Bay 21 Chicago 13 +0.1
Washington 38 Cleveland 21 -0.1
Miami 24 Jacksonville 3 +0.1
Week of 12/22100.0*Chance in playoffs100.0*Average seed
Cincinnati 13 Pittsburgh 10 In
Indianapolis 20 Kansas City 13 In
+0.1
San Diego 27 NY Jets 17 -0.2
Carolina 17 Oakland 6 +0.1
Green Bay 55 Tennessee 7 -0.1
Atlanta 31 Detroit 18 -0.1
Minnesota 23 Houston 6 +0.1
Week of 12/30None
Games Above .500
Chance Will Make Playoffs