How are these numbers calculated?

Big Games

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

Week of 11/7100.0*Chance in playoffs100.0*Average seed
Coritiba 0 Flamengo 0 -7.5
-0.5
Sport Recife 0 Corinthians 0 +1.4
+0.1
Guarani 0 Portuguesa 1 -1.4
-0.1
Santos 1 Vitoria 0 +0.9
+0.1
Goias 4 Juventude 1 -0.7
-0.1
Corinthians 0 Bahia 0 +0.7
+0.1
Atletico-MG 5 Vasco da Gama 1 -0.6
+0.1
Vasco da Gama 1 Santos 2 +0.5
+0.1
Internacional 2 Parana 1 -0.3
-0.1
Sao Paulo 2 Gremio 1 -0.2
-0.2
Gremio 3 Santos 0 -0.1
+0.1
Botafogo 0 Cruzeiro 0 +0.0
Week of 11/14100.0*Chance in playoffs100.0*Average seed
Flamengo 3 Fluminense 1 +6.7
+1.2
Cruzeiro 3 Sport Recife 1 +1.1
+0.1
Corinthians 1 Goias 1 +1.1
Bragantino 3 Sao Paulo 4 -0.4
-0.2
Vitoria 0 Guarani 1 -0.4
+0.1
Portuguesa 1 Internacional 2 +0.3
-0.2
Palmeiras 2 Atletico-MG 0 +0.2
Vasco da Gama 4 Criciuma 2 -0.1
Santos 3 Atletico-PR 2 -0.1
Juventude 3 Botafogo 5 +0.0
Week of 11/21100.0*Chance in playoffs100.0*Average seed
Flamengo 0 Bahia 1 -1.5
Corinthians 1 Coritiba 1 +0.3
Vitoria 1 Fluminense 3 +0.3
Sao Paulo 1 Cruzeiro 0 -0.2
Parana 1 Sao Paulo 1 +0.1
Vasco da Gama 0 Guarani 2 +0.1
Points
Chance Will Make Playoffs