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 +15.0
+1.1
Bahia 2 Gama 1 -2.1
-0.1
America-MG 1 Bahia 2 -2.0
-0.1
Ponte Preta 1 Juventude 0 -1.9
-0.1
Fluminense 0 Portuguesa 0 -1.8
-0.3
Santos 1 Ponte Preta 2 -1.7
-0.1
Atletico-MG 2 Palmeiras 1 +1.7
+0.0
Sao Paulo 3 Flamengo 1 -1.6
-0.1
Flamengo 1 Internacional 0 +1.6
+0.2
Vitoria 1 Goias 0 +1.5
+0.1
Cruzeiro 1 Sao Paulo 4 -1.4
-0.2
Goias 2 Coritiba 1 -1.1
-0.1
Portuguesa 1 Cruzeiro 3 +1.1
+0.1
Palmeiras 1 Vasco da Gama 3 +1.0
Botafogo-SP 2 Vitoria 0 +0.5
Internacional 3 Santos 0 +0.1
-0.1
Gremio 1 Sao Caetano 2 +0.1
Corinthians 2 Atletico-MG 2 +0.0
Week of 11/24100.0*Chance in playoffs100.0*Average seed
Fluminense 2 Santos 1 +19.2
+1.1
Bahia 1 Coritiba 1 +0.8
+0.0
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