How are these numbers calculated?

Big Games

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

Week of 10/23100.0*Chance in playoffs100.0*Average seed
Vitoria 2 Parana 0 -0.5
+0.1
Parana 4 Atletico-MG 1 +0.4
-0.1
Portuguesa 2 Flamengo 3 -0.4
-0.1
Ponte Preta 2 Portuguesa 1 -0.3
+0.1
Coritiba 2 Palmeiras 1 +0.2
-0.1
Gama 1 Coritiba 1 +0.2
+0.1
Atletico-PR 2 Corinthians 2 +0.2
Juventude 2 Vasco da Gama 1 +0.1
Flamengo 0 Cruzeiro 2 +0.0
Gremio 2 Sport Recife 1 -0.1
Week of 10/30100.0*Chance in playoffs100.0*Average seed
Santos 2 Gremio 1 +3.5
+1.4
Palmeiras 0 Guarani 0 +1.5
+0.1
Corinthians 0 Atletico-MG 4 -1.2
-0.1
Vasco da Gama 2 Atletico-PR 1 +0.9
+0.1
Sao Paulo 1 Ponte Preta 0 +0.9
Guarani 1 Vitoria 2 -0.7
Parana 1 Sao Paulo 2 -0.4
+0.1
Cruzeiro 2 Botafogo-SP 1 -0.3
Botafogo 3 Gama 1 +0.1
Parana 1 Internacional 0 -0.1
Gremio 0 Corinthians 3 +0.1
Week of 11/7100.0*Chance in playoffs100.0*Average seed
Santos 3 Cruzeiro 3 Out
-0.7
Flamengo 0 Santos 1 +11.2
+1.5
Atletico-MG 2 Gremio 0 -9.8
-0.2
Vitoria 0 Sao Paulo 3 -6.3
-0.1
Internacional 1 Palmeiras 0 +6.0
+0.1
Juventude 3 Flamengo 1 +6.0
+0.3
Corinthians 1 Ponte Preta 2 -1.6
Coritiba 1 Juventude 1 +0.7
+0.1
Corinthians 3 Coritiba 2 +0.3
Atletico-PR 3 Sport Recife 1 -0.3
Cruzeiro 5 Parana 2 +0.1
Gama 2 Portuguesa 1 -0.1
Points
Chance Will Make Playoffs