How are these numbers calculated?

Big Games

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

Week of 4/8100.0*Chance in playoffs100.0*Average seed
Cienciano 0 Flamengo 3 In
+0.8
Week of 4/15None
Week of 4/22100.0*Chance in playoffs100.0*Average seed
Flamengo 2 Coronel Bolognesi 0 +0.3
Nacional 3 Cienciano 1 -0.1
Points
Chance Will Make Playoffs