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
Atlas 3 Boca Juniors 1 +26.4
+0.6
Colo-Colo 2 Union Maracaibo 0 -6.3
-0.2
Week of 4/15None
Week of 4/22100.0*Chance in playoffs100.0*Average seed
Boca Juniors 3 Union Maracaibo 0 -21.5
-0.2
Colo-Colo 1 Atlas 1 In
+0.5
Points
Chance Will Make Playoffs