How are these numbers calculated?

Big Games

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

Week of 4/4100.0*Chance in playoffs100.0*Average seed
Universidad Catolica 2 Corinthians 3 -17.9
-0.1
Week of 4/11100.0*Chance in playoffs100.0*Average seed
Deportivo Cali 2 Tigres UANL 2 +5.6
+0.0
Week of 4/19100.0*Chance in playoffs100.0*Average seed
Tigres UANL 1 Universidad Catolica 0 In
+0.8
Corinthians 3 Deportivo Cali 0 -0.1
Points
Chance Will Make Playoffs