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*Serie B100.0*Average seed
Guarani 0 Juventude 0 +6.4
-0.3
Coritiba 0 Atletico-PR 2 +2.2
-0.1
Portuguesa 1 Goias 2 +1.4
-0.1
Sport Recife 2 Bragantino 1 -1.1
Criciuma 3 Vasco da Gama 4 -1.0
+0.1
Fluminense 2 Criciuma 0 -0.9
-0.1
Santos 3 Bahia 1 -0.5
Sao Paulo 7 Uniao Sao Joao 1 +0.3
+0.1
Palmeiras 5 Gremio 1 -0.1
Week of 11/1100.0*Serie B100.0*Average seed
Uniao Sao Joao 0 Guarani 1 -26.9
+1.4
Gremio 1 Guarani 4 -12.9
+0.9
Corinthians 1 Flamengo 0 +6.6
-0.2
Bragantino 1 Uniao Sao Joao 0 +2.0
Corinthians 0 Sport Recife 1 -1.9
+0.1
Atletico-PR 2 Internacional 1 +1.8
-0.1
Portuguesa 2 Criciuma 2 -1.1
+0.0
Vasco da Gama 3 Bahia 1 -1.0
Juventude 1 Fluminense 1 -0.6
+0.1
Week of 11/8100.0*Serie B100.0*Average seed
Guarani 3 Vasco da Gama 2 -56.1
+2.7
Bahia 0 Juventude 0 +5.5
+0.1
Criciuma 1 Atletico-PR 1 -3.4
-0.2
Goias 0 Corinthians 2 +0.3
-0.2
Coritiba 2 America-RN 0 +0.2
-0.2
Internacional 7 Bragantino 0 -0.2
+0.1
Fluminense 0 Gremio 2 +0.1
Santos 2 Cruzeiro 2 -0.1
+0.1
Points
Chance Will Make Playoffs