How are these numbers calculated?

Big Games

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

Week of 11/15100.0*Chance in playoffs100.0*Average seed
Parana 0 Fluminense 1 +3.2
+0.7
Bahia 2 Gama 1 -0.6
-0.1
Ponte Preta 1 Juventude 0 -0.5
Sao Paulo 3 Flamengo 1 -0.4
-0.1
Atletico-MG 2 Palmeiras 1 +0.4
-0.1
Fluminense 0 Portuguesa 0 +0.3
-0.3
Portuguesa 1 Cruzeiro 3 +0.3
Goias 2 Coritiba 1 -0.3
America-MG 1 Bahia 2 -0.2
Flamengo 1 Internacional 0 +0.2
+0.1
Santos 1 Ponte Preta 2 -0.2
Cruzeiro 1 Sao Paulo 4 -0.2
-0.1
Vitoria 1 Goias 0 +0.1
Botafogo-SP 2 Vitoria 0 +0.1
Palmeiras 1 Vasco da Gama 3 +0.1
Internacional 3 Santos 0 -0.1
Gremio 1 Sao Caetano 2 +0.1
Vasco da Gama 2 Gremio 0 +0.1
Gama 4 Atletico-PR 1 +0.1
Corinthians 2 Atletico-MG 2 +0.1
Week of 11/24100.0*Chance in playoffs100.0*Average seed
Fluminense 2 Santos 1 In
+0.9
Bahia 1 Coritiba 1 +0.1
+0.0
Atletico-MG 2 Gremio 0 -0.1
Vasco da Gama 7 Sao Paulo 1 +0.1
Week of 12/1100.0*Chance in playoffs100.0*Average seed
Corinthians 1 Fluminense 2 +0.5
Vitoria 2 Atletico-PR 4 -0.3
Sao Paulo 3 Atletico-MG 0 +0.2
Points
Chance Will Make Playoffs