How are these numbers calculated?

Big Games

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

Week of 11/20100.0*Libertadores100.0*Serie B100.0*Average seed
Atletico-GO 1 Ceara 1 -2.2
+0.7
-0.3
Atletico-GO 1 Juventude 1 -2.0
-0.4
Internacional 1 Flamengo 2 +0.6
+0.0
Ceara 2 Corinthians 1 -0.5
-0.1
Fortaleza 1 Palmeiras 0 -0.2
Sao Paulo 0 Athletico-PR 0 +0.1
+0.1
Santos 2 Fortaleza 0 -0.1
+0.9
-0.2
Fluminense 2 America-MG 0 -0.1
Bahia 0 Cuiaba 0 +0.1
-0.4
+0.1
Corinthians 2 Santos 0 +0.1
-0.5
+0.1
Fluminense 1 Internacional 0 +0.1
Atletico-MG 2 Juventude 0 -0.6
+0.1
Bahia 3 Gremio 1 +2.1
-0.1
Chapecoense 1 Gremio 3 +0.6
Gremio 2 Flamengo 2 -0.1
Week of 11/27100.0*Libertadores100.0*Serie B100.0*Average seed
Chapecoense 0 Atletico-GO 1 +2.6
No
+1.0
Atletico-GO 2 Bahia 1 +1.8
-13.7
+1.4
Flamengo 2 Ceara 1 +0.7
+0.0
America-MG 3 Chapecoense 0 -0.5
-0.1
Gremio 3 Sao Paulo 0 +0.3
+0.2
Internacional 1 Santos 1 +0.2
+0.0
Juventude 1 Bragantino 0 +0.1
+0.8
-0.1
Cuiaba 1 Palmeiras 3 +0.1
-0.2
+0.1
Bragantino 1 America-MG 1 +0.1
Sao Paulo 2 Sport Recife 0 -0.1
+1.1
-0.1
Corinthians 1 Athletico-PR 0 -0.9
+0.1
Fortaleza 1 Juventude 0 -0.2
+0.1
Athletico-PR 1 Cuiaba 0 -0.1
Bahia 2 Atletico-MG 3 -0.9
+0.0
Week of 12/5100.0*Libertadores100.0*Serie B100.0*Average seed
Atletico-GO 2 Flamengo 0 +56.5
+1.9
Internacional 1 Atletico-GO 2 +14.5
+1.9
America-MG 2 Sao Paulo 0 -9.3
-0.0
Fluminense 3 Chapecoense 0 -3.6
-0.1
Ceara 0 America-MG 0 +2.0
+0.1
Sao Paulo 3 Juventude 1 -0.8
-0.2
Bahia 2 Fluminense 0 +0.8
Flamengo 0 Santos 1 -0.7
-0.3
Santos 1 Cuiaba 1 +0.6
-0.1
Palmeiras 1 Ceara 0 +0.3
+0.3
Athletico-PR 0 Palmeiras 0 +0.3
+0.1
Bragantino 1 Internacional 0 +0.2
+0.2
Atletico-MG 4 Bragantino 3 +0.2
Cuiaba 1 Fortaleza 0 -0.1
Points
Chance Will Win Championship