How are these numbers calculated?

Big Games

How we did last week and who we should root for this week.   Explain

Week of 1/12100.0*Chance in playoffs100.0*Average seed
Orlando 26 London 35 +12.6
+0.1
Georgia 37 Orlando 26 +0.3
+0.0
Week of 1/24100.0*Chance in playoffs100.0*Average seed
North Carolina 48 Chicago 77 +17.8
+0.2
Week of 1/25None
Games Above .500
Chance Will Make Playoffs