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
Jaguares 1 Internacional 0 +53.9
+0.7
Jorge Wilstermann 0 Emelec 0 +17.0
+0.3
Week of 4/13100.0*Chance in playoffs100.0*Average seed
Jorge Wilstermann 2 Jaguares 1 -31.4
-0.6
Internacional 2 Emelec 0 In
-0.2
Week of 4/20None
Points
Chance Will Make Playoffs