How are these numbers calculated?

Big Games

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

Week of 4/2100.0*Chance in playoffs100.0*Average seed
The Strongest 2 Sao Paulo 1 -39.4
-0.6
Atletico-MG 5 Arsenal 2 +12.2
+0.2
Week of 4/9None
Week of 4/16100.0*Chance in playoffs100.0*Average seed
Sao Paulo 2 Atletico-MG 0 +29.3
+0.7
Arsenal 2 The Strongest 1 +10.9
-0.1
Points
Chance Will Make Playoffs