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
Botafogo 0 Cruzeiro 0 +0.2
-0.1
Guarani 0 Portuguesa 1 -0.1
+0.1
Sport Recife 0 Corinthians 0 +0.1
+0.0
Santos 1 Vitoria 0 +0.1
Goias 4 Juventude 1 -0.1
Corinthians 0 Bahia 0 +0.1
Atletico-MG 5 Vasco da Gama 1 -0.1
-0.1
Gremio 3 Santos 0 -0.2
Criciuma 2 Palmeiras 1 +0.1
Sao Paulo 2 Gremio 1 +0.1
Fluminense 2 Atletico-PR 3 -0.2
Week of 11/14100.0*Chance in playoffs100.0*Average seed
Cruzeiro 0 Coritiba 0 +0.1
-0.2
Cruzeiro 3 Sport Recife 1 In
+1.0
Vitoria 0 Guarani 1 -0.1
Portuguesa 1 Internacional 2 +0.1
Palmeiras 2 Atletico-MG 0 -0.1
Gremio 0 Coritiba 2 +0.2
Santos 3 Atletico-PR 2 +0.1
Week of 11/21100.0*Chance in playoffs100.0*Average seed
Cruzeiro 2 Santos 1 +1.1
Sao Paulo 1 Cruzeiro 0 -0.5
Palmeiras 4 Sport Recife 1 -0.4
Vasco da Gama 0 Guarani 2 -0.3
Juventude 1 Atletico-MG 0 +0.2
Atletico-PR 1 Criciuma 2 +0.2
Gremio 1 Goias 3 +0.1
Atletico-MG 3 Atletico-PR 2 +0.1
Points
Chance Will Make Playoffs