Cincinnati Bengals Playoff Chances 2013-2 50/50

Beat Baltimore 34-17, average seed unchanged at 3
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 12/12100.0*Chance in playoffs100.0*Average seed
Baltimore 18 Detroit 16 -5.5
-0.4
Pittsburgh 30 Cincinnati 20 -4.4
-0.6
Miami 24 New England 20 -2.4
+0.1
Carolina 30 NY Jets 20 -0.3
San Diego 27 Denver 20 +0.0
Indianapolis 25 Houston 3 -0.1
Week of 12/22100.0*Chance in playoffs100.0*Average seed
Cincinnati 42 Minnesota 14 +17.1
+0.7
Buffalo 19 Miami 0 +7.9
+0.1
New England 41 Baltimore 7 +1.6
+0.3
Indianapolis 23 Kansas City 7 -0.1
Week of 12/29100.0*Chance in playoffs100.0*Average seed
Cincinnati 34 Baltimore 17 +0.5
New England 34 Buffalo 20 -0.3
Indianapolis 30 Jacksonville 10 -0.2
Games Above .500
Chance Will Make Playoffs