How are these numbers calculated?

Big Games

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

Week of 4/6100.0*Chance in playoffs100.0*Average seed
Denver 23 SFGG 29 In
+0.7
Glendale 49 OPSB 39 -0.9
+0.0
Week of 4/13100.0*Chance in playoffs100.0*Average seed
OPSB 39 Denver 14 In
+0.2
SFGG 43 Glendale 10 In
+0.7
Week of 4/20None
Games Above .500
Chance Will Make Playoffs