How are these numbers calculated?

Big Games

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

Week of 5/15100.0*Chance in playoffs100.0*Average seed
Defensor Sporting 0 Cerro Porteno 1 In
+0.6
Monagas 1 Gremio 2 -1.2
-0.1
Week of 5/22100.0*Chance in playoffs100.0*Average seed
Cerro Porteno 3 Monagas 2 +0.4
Gremio 1 Defensor Sporting 0 -0.2
Points
Chance Will Make Playoffs