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*Serie B100.0*Average seed
America-MG 2 Atletico-PR 1 -29.6
+1.1
Santos 1 Parana 2 +6.4
-0.3
Goias 2 Juventude 2 -3.1
+0.1
Ponte Preta 2 Bragantino 2 -2.0
+0.1
Bragantino 1 Juventude 0 +1.5
+0.0
Gremio 2 America-RN 1 -0.3
+0.0
America-RN 2 Santos 2 -0.1
Sport Recife 2 Botafogo 1 -0.1
Sao Paulo 1 Corinthians 2 -0.1
Flamengo 2 Guarani 1 -0.1
Week of 10/31100.0*Serie B100.0*Average seed
Flamengo 2 America-MG 0 +21.6
-1.0
America-RN 0 Ponte Preta 1 +4.5
-0.2
Palmeiras 3 Parana 2 -3.8
+0.1
Santos 3 Goias 1 -3.4
+0.1
Portuguesa 3 Bragantino 1 -2.9
+0.1
Guarani 1 Gremio 3 -0.3
+0.1
Internacional 0 Botafogo 0 +0.2
-0.1
Week of 11/7100.0*Serie B100.0*Average seed
Parana 2 Flamengo 1 +30.9
-0.6
Goias 2 Vasco da Gama 2 -11.4
+0.2
Bragantino 0 Vitoria 0 -9.3
+0.2
America-MG 1 Palmeiras 1 +1.0
-0.2
Sport Recife 2 Guarani 1 +0.1
Sao Paulo 2 Atletico-PR 0 -0.1
Ponte Preta 0 Atletico-MG 0 -0.1
Points
Chance Will Make Playoffs