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
The Strongest 1 Goias 0 -3.2
-0.1
Week of 4/11100.0*Chance in playoffs100.0*Average seed
Union Espanola 1 Newell's Old Boys 1 -3.2
-0.2
Week of 4/19100.0*Chance in playoffs100.0*Average seed
Newell's Old Boys 2 The Strongest 0 +42.4
+1.1
Goias 0 Union Espanola 0 +12.1
+0.1
Points
Chance Will Make Playoffs