How are these numbers calculated?

Big Games

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

Week of 4/5100.0*Chance in playoffs100.0*Average seed
Melgar 1 Colo-Colo 2 -0.2
Independiente del Valle 3 Atletico-MG 2 -0.1
-0.3
Week of 4/12100.0*Chance in playoffs100.0*Average seed
Atletico-MG 4 Melgar 0 In
+0.2
Colo-Colo 0 Independiente del Valle 0 In
+0.3
Week of 4/19None
Points
Chance Will Make Playoffs