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
Independiente del Valle 1 San Lorenzo 1 -5.6
-0.2
Week of 4/1100.0*Chance in playoffs100.0*Average seed
Botafogo 0 Union Espanola 1 +6.5
+0.0
Week of 4/8100.0*Chance in playoffs100.0*Average seed
San Lorenzo 3 Botafogo 0 +45.6
+0.9
Union Espanola 4 Independiente del Valle 5 -14.3
-0.3
Points
Chance Will Make Playoffs