How are these numbers calculated?

Big Games

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

Week of 10/25100.0*Chance in playoffs100.0*Average seed
Palmeiras 5 Gremio 1 +10.0
+0.6
Guarani 0 Juventude 0 +2.0
+0.1
Vitoria 1 Cruzeiro 1 +1.9
+0.1
Atletico-MG 3 America-RN 2 +1.5
+0.0
Santos 3 Bahia 1 -1.0
-0.1
Flamengo 1 Vitoria 0 +0.4
-0.1
Botafogo 0 Parana 0 +0.4
Internacional 4 Flamengo 0 +0.1
+0.1
Sport Recife 2 Bragantino 1 -0.1
Week of 11/1100.0*Chance in playoffs100.0*Average seed
Palmeiras 3 Goias 3 +0.7
-0.2
Vitoria 2 Santos 0 -0.4
+0.2
Juventude 1 Fluminense 1 +0.2
+0.0
America-RN 1 Sao Paulo 3 +0.1
Santos 2 America-RN 0 -0.3
Flamengo 1 Coritiba 0 -0.1
Portuguesa 2 Criciuma 2 +0.0
Week of 11/8100.0*Chance in playoffs100.0*Average seed
Atletico-MG 3 Vitoria 2 In
Bahia 0 Juventude 0 In
Sport Recife 1 Palmeiras 1 -0.5
Santos 2 Cruzeiro 2 +0.2
Flamengo 0 Uniao Sao Joao 0 -0.1
Points
Chance Will Make Playoffs