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*Reg Season Champs100.0*Average seed
California 33 St. Paul 65 +0.1
+0.0
St. Paul 62 North Carolina 45 +0.1
+0.0
London 19 Mississippi 77 No
Georgia 37 Orlando 26 No
Week of 1/24100.0*Chance in playoffs100.0*Reg Season Champs100.0*Average seed
North Carolina 48 Chicago 77 +0.1
Week of 1/25None
Games Above .500
Chance Will Make Playoffs