Detroit Lions Playoff Chances 2011 50/50

Lost to Green Bay 41-45, average seed down 0.8 to 6
10-6-0   .625

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*Chance in playoffs100.0*Average seed
Oakland 27 Detroit 28 +14.9
+0.4
Arizona 20 Cleveland 17 -2.7
-0.1
Atlanta 41 Jacksonville 14 -2.0
-0.2
Chicago 14 Seattle 38 -1.6
-0.0
NY Giants 10 Washington 23 -0.2
Tampa Bay 15 Dallas 31 +0.2
-0.0
Philadelphia 45 NY Jets 19 -0.1
Week of 12/22100.0*Chance in playoffs100.0*Average seed
Detroit 38 San Diego 10 In
+0.4
Cincinnati 23 Arizona 16 +4.6
+0.1
Seattle 17 San Francisco 19 +4.1
+0.1
NY Jets 14 NY Giants 29 +0.6
Dallas 7 Philadelphia 20 -0.5
New Orleans 45 Atlanta 16 +0.2
Week of 1/1100.0*Chance in playoffs100.0*Average seed
Atlanta 45 Tampa Bay 24 -0.3
Green Bay 45 Detroit 41 -0.3
Games Above .500
Chance Will Make Playoffs