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
Chivas Guadalajara 3 Santos 2 -33.4
-0.7
San Jose 2 Cucuta Deportivo 4 +0.4
-0.0
Week of 4/15100.0*Chance in playoffs100.0*Average seed
Santos 2 Cucuta Deportivo 1 In
+0.4
San Jose 0 Chivas Guadalajara 3 -21.2
-0.2
Week of 4/22None
Points
Chance Will Make Playoffs