How are these numbers calculated?

Big Games

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

Week of 3/25100.0*Chance in playoffs100.0*Average seed
Lanus 2 Cerro Porteno 0 +22.6
+0.7
Deportivo Cali 1 O'Higgins 1 +11.1
+0.2
Week of 4/1None
Week of 4/8100.0*Chance in playoffs100.0*Average seed
O'Higgins 0 Lanus 0 In
+0.5
Cerro Porteno 3 Deportivo Cali 2 -0.0
Points
Chance Will Make Playoffs