How are these numbers calculated?

Big Games

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

Week of 11/17100.0*Serie B100.0*Average seed
Ceara 1 Parana 0 -12.5
+0.8
America-MG 2 Santos 1 +2.6
-0.1
Vitoria 1 Atletico-PR 2 -2.5
+0.1
Vasco da Gama 2 Sao Paulo 0 +2.2
-0.2
Gremio 2 Chapecoense 0 -2.1
+0.1
Palmeiras 4 America-MG 0 -1.8
+0.1
Cruzeiro 3 Vitoria 0 -1.7
+0.1
Sport Recife 0 Flamengo 1 -1.6
+0.1
Chapecoense 2 Sport Recife 1 +1.1
-0.0
Corinthians 1 Vasco da Gama 0 -0.6
-0.0
Bahia 2 Fluminense 0 -0.1
+0.0
Atletico-PR 1 Corinthians 0 +0.1
Botafogo 1 Internacional 0 -0.1
Atletico-MG 1 Bahia 0 +0.0
Week of 11/25100.0*Serie B100.0*Average seed
America-MG 1 Bahia 0 +2.9
Atletico-PR 2 Ceara 2 -1.9
-0.1
Corinthians 0 Chapecoense 0 -1.5
+0.2
Internacional 2 Fluminense 0 -0.5
+0.1
Vitoria 0 Gremio 0 -0.3
Vasco da Gama 0 Palmeiras 1 -0.1
+0.1
Week of 12/1100.0*Serie B100.0*Average seed
Chapecoense 1 Sao Paulo 0 -0.4
Fluminense 1 America-MG 0 -0.1
Gremio 1 Corinthians 0 +0.1
Points
Chance Will Win Championship