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
Gremio 2 Flamengo 2 +0.4
Chapecoense 1 Gremio 3 -4.6
+0.3
Bahia 0 Cuiaba 0 -0.5
+0.0
Corinthians 2 Santos 0 -0.5
Ceara 2 Corinthians 1 No
Bahia 3 Gremio 1 +11.4
-0.6
Santos 2 Fortaleza 0 +1.1
Atletico-MG 2 Juventude 0 -0.7
Atletico-GO 1 Juventude 1 -0.2
Week of 11/27100.0*Libertadores100.0*Serie B100.0*Average seed
Gremio 3 Sao Paulo 0 -3.0
+0.3
Juventude 1 Bragantino 0 +1.6
Athletico-PR 1 Cuiaba 0 +1.1
Fortaleza 1 Juventude 0 -0.8
Atletico-GO 2 Bahia 1 -0.4
Sao Paulo 2 Sport Recife 0 +0.3
+0.1
Corinthians 1 Athletico-PR 0 -0.3
Bahia 2 Atletico-MG 3 -0.3
+0.0
Chapecoense 0 Atletico-GO 1 +0.1
Cuiaba 1 Palmeiras 3 -0.1
Week of 12/5100.0*Libertadores100.0*Serie B100.0*Average seed
Gremio 4 Atletico-MG 3 -18.0
+0.8
Fortaleza 2 Bahia 1 -3.5
+0.1
Juventude 1 Corinthians 0 Yes
-0.1
Sao Paulo 3 Juventude 1 -1.8
Corinthians 1 Gremio 1 +1.7
+0.1
Cuiaba 1 Fortaleza 0 +1.3
Bahia 2 Fluminense 0 +1.2
-0.2
Points
Chance Will Win Championship