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*Win Super Bowl100.0*Average seed
Pittsburgh 10 Buffalo 17 In
+0.1
+0.3
Tennessee 21 Houston 24 +0.5
+0.1
Arizona 38 Cleveland 24 +0.3
Oakland 16 Jacksonville 20 +0.1
Cincinnati 13 New England 34 -0.0
-0.0
Week of 12/22100.0*Chance in playoffs100.0*Win Super Bowl100.0*Average seed
Chicago 3 Kansas City 26 +0.1
Tennessee 28 New Orleans 38 +0.1
New England 24 Buffalo 17 -0.1
-0.0
Week of 12/29100.0*Chance in playoffs100.0*Win Super Bowl100.0*Average seed
New England 24 Miami 27 +0.2
Houston 14 Tennessee 35 +0.1
Kansas City 31 LA Chargers 21 +0.1
Seattle 21 San Francisco 26 -0.0
Games Above .500
Chance Will Make Playoffs