How are these numbers calculated?

Big Games

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

Week of 10/24100.0*Chance in playoffs100.0*Serie B100.0*Average seed
Sport Recife 2 Botafogo 1 -0.6
+0.3
-1.0
Cruzeiro 3 Palmeiras 1 -0.2
-0.1
America-MG 2 Atletico-PR 1 +0.1
+0.4
+0.1
Vasco da Gama 0 Vitoria 1 +0.1
-0.1
Gremio 2 America-RN 1 -0.1
-0.1
Flamengo 2 Guarani 1 -0.1
+0.1
Goias 2 Juventude 2 -0.1
+0.1
Bragantino 1 Juventude 0 -0.3
+0.2
Santos 1 Parana 2 +0.2
Ponte Preta 2 Bragantino 2 -0.1
+0.1
Sao Paulo 1 Corinthians 2 +0.1
Week of 10/31100.0*Chance in playoffs100.0*Serie B100.0*Average seed
Internacional 0 Botafogo 0 -1.1
-0.0
Flamengo 2 America-MG 0 -0.1
+0.1
America-RN 0 Ponte Preta 1 +0.1
-0.1
Portuguesa 3 Bragantino 1 -0.1
+0.0
Santos 3 Goias 1 -0.1
+0.0
Palmeiras 3 Parana 2 -0.1
+0.0
Guarani 1 Gremio 3 -0.1
+0.3
Atletico-PR 1 Cruzeiro 2 +0.1
Week of 11/7100.0*Chance in playoffs100.0*Serie B100.0*Average seed
Botafogo 2 Santos 1 +1.7
Sao Paulo 2 Atletico-PR 0 -0.4
Sport Recife 2 Guarani 1 +0.3
Cruzeiro 5 Juventude 0 +0.3
Ponte Preta 0 Atletico-MG 0 -0.2
Points
Chance Will Make Playoffs