How are these numbers calculated?

Big Games

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

Week of 2/6100.0*Libertadores100.0*Serie B100.0*Average seed
Bahia 3 Goias 3 -2.3
+0.1
Week of 2/13100.0*Libertadores100.0*Serie B100.0*Average seed
Santos 2 Coritiba 0 No
Palmeiras 3 Fortaleza 0 +4.0
-0.4
Vasco da Gama 0 Internacional 2 -2.0
+0.1
Atletico-MG 1 Bahia 1 +0.8
-0.0
Goias 2 Botafogo 0 +0.6
Week of 2/20100.0*Libertadores100.0*Serie B100.0*Average seed
Fortaleza 0 Bahia 4 +10.0
-0.8
Goias 0 Bragantino 0 -7.1
+0.1
Vasco da Gama 3 Goias 2 +6.6
-0.1
Corinthians 0 Vasco da Gama 0 -4.9
+0.1
Fluminense 2 Fortaleza 0 +4.2
-0.5
Bahia 2 Santos 0 -0.3
Athletico-PR 2 Sport Recife 0 +0.1
Sport Recife 2 Atletico-MG 3 +0.1
Points
Chance Will Win Championship