How are these numbers calculated?

Big Games

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

Week of 11/15100.0*Chance in playoffs100.0*Average seed
Gremio 1 Sao Caetano 2 -0.4
-0.5
Santos 1 Ponte Preta 2 -0.2
America-MG 1 Bahia 2 -0.1
-0.1
Cruzeiro 1 Sao Paulo 4 -0.1
-0.1
Flamengo 1 Internacional 0 +0.1
+0.1
Vitoria 1 Goias 0 +0.1
Palmeiras 1 Vasco da Gama 3 +0.1
Vasco da Gama 2 Gremio 0 -0.5
Fluminense 0 Portuguesa 0 +0.1
Atletico-MG 2 Palmeiras 1 -0.1
Corinthians 2 Atletico-MG 2 +0.1
Sao Caetano 2 Guarani 0 -0.1
Week of 11/24100.0*Chance in playoffs100.0*Average seed
Fluminense 2 Santos 1 -0.9
-0.2
Bahia 1 Coritiba 1 +0.3
+0.1
Week of 12/1100.0*Chance in playoffs100.0*Average seed
Gremio 3 Portuguesa 1 +0.7
Sao Paulo 3 Atletico-MG 0 -0.4
Coritiba 1 Ponte Preta 2 -0.2
Sport Recife 0 Bahia 1 -0.2
Points
Chance Will Make Playoffs