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
Cincinnati 13 New England 34 In
+0.1
Kansas City 23 Denver 3 -0.0
Baltimore 42 NY Jets 21 -0.0
Week of 12/22100.0*Chance in playoffs100.0*Average seed
New England 24 Buffalo 17 +0.1
Chicago 3 Kansas City 26 -0.1
Cleveland 15 Baltimore 31 -0.0
Week of 12/29100.0*Chance in playoffs100.0*Average seed
New England 24 Miami 27 -0.7
Games Above .500
Chance Will Make Playoffs