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*Serie B100.0*Average seed
Internacional 2 Parana 1 Out
+1.6
-1.2
Santos 1 Vitoria 0 -0.1
Goias 4 Juventude 1 +0.1
Vasco da Gama 1 Santos 2 -0.1
Sao Paulo 2 Gremio 1 -0.1
Coritiba 0 Flamengo 0 +0.1
Criciuma 2 Palmeiras 1 +0.5
Fluminense 2 Atletico-PR 3 -0.5
+0.1
Corinthians 0 Bahia 0 -0.2
+0.0
Bahia 4 Bragantino 2 +0.1
+0.0
Atletico-MG 5 Vasco da Gama 1 +0.1
Gremio 3 Santos 0 +0.1
Botafogo 0 Cruzeiro 0 +0.0
Week of 11/14100.0*Chance in playoffs100.0*Serie B100.0*Average seed
Parana 2 Bahia 1 No
+1.2
Bragantino 3 Sao Paulo 4 -0.8
+0.0
Flamengo 3 Fluminense 1 -0.7
Vasco da Gama 4 Criciuma 2 -0.7
-0.1
Gremio 0 Coritiba 2 -0.2
Cruzeiro 0 Coritiba 0 +0.0
Santos 3 Atletico-PR 2 -0.1
Week of 11/21100.0*Chance in playoffs100.0*Serie B100.0*Average seed
Vasco da Gama 0 Guarani 2 +0.3
Cruzeiro 2 Santos 1 +0.3
Portuguesa 4 Botafogo 1 +0.3
Parana 1 Sao Paulo 1 -0.3
Flamengo 0 Bahia 1 +0.2
Juventude 1 Atletico-MG 0 -0.2
Vitoria 1 Fluminense 3 +0.1
Corinthians 1 Coritiba 1 +0.1
Points
Chance Will Make Playoffs