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
Pumas 4 Olimpia 1 In
Deportivo Tachira 1 Emelec 0 +1.1
Week of 4/12100.0*Chance in playoffs100.0*Average seed
Emelec 2 Pumas 3 +0.1
Olimpia 4 Deportivo Tachira 0 +0.1
Week of 4/19None
Chance Will Make Playoffs