How are these numbers calculated?

Big Games

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

Week of 4/3None
Week of 4/10100.0*Chance in playoffs100.0*Average seed
Deportivo Quito 2 Defensor Sporting 0 +34.9
Guadalajara 0 Velez Sarsfield 2 +3.4
Week of 4/17100.0*Chance in playoffs100.0*Average seed
Velez Sarsfield 1 Defensor Sporting 3 -24.3
Deportivo Quito 5 Guadalajara 0 In
Chance Will Make Playoffs