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
Internacional 2 Parana 1 +7.0
+1.5
Guarani 0 Portuguesa 1 -1.4
-0.1
Santos 1 Vitoria 0 +0.9
+0.0
Sport Recife 0 Corinthians 0 +0.9
Corinthians 0 Bahia 0 +0.8
+0.0
Goias 4 Juventude 1 -0.7
-0.0
Coritiba 0 Flamengo 0 +0.5
+0.1
Atletico-MG 5 Vasco da Gama 1 -0.4
+0.1
Vasco da Gama 1 Santos 2 +0.3
+0.1
Sao Paulo 2 Gremio 1 -0.1
-0.2
Gremio 3 Santos 0 -0.1
+0.0
Week of 11/14100.0*Chance in playoffs100.0*Average seed
Portuguesa 1 Internacional 2 +19.6
+1.8
Cruzeiro 3 Sport Recife 1 +4.3
+0.2
Corinthians 1 Goias 1 +3.1
+0.1
Flamengo 3 Fluminense 1 -1.9
-0.1
Vitoria 0 Guarani 1 -1.1
-0.0
Bragantino 3 Sao Paulo 4 -0.5
-0.2
Palmeiras 2 Atletico-MG 0 -0.1
Week of 11/21100.0*Chance in playoffs100.0*Average seed
Bragantino 1 Internacional 0 -47.8
-1.3
Gremio 1 Goias 3 -10.3
-0.2
Portuguesa 4 Botafogo 1 -9.6
-0.2
Parana 1 Sao Paulo 1 +7.6
+0.2
Palmeiras 4 Sport Recife 1 +6.3
+0.2
Sao Paulo 1 Cruzeiro 0 -5.2
-0.1
Atletico-MG 3 Atletico-PR 2 -0.2
Points
Chance Will Make Playoffs