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*Average seed
Atletico-GO 1 Santos 1 +3.2
+0.1
Botafogo 2 Gremio 5 -1.0
-0.1
Week of 2/13100.0*Libertadores100.0*Average seed
Flamengo 2 Corinthians 1 -12.0
-0.5
Santos 2 Coritiba 0 -4.9
-0.1
Athletico-PR 2 Atletico-GO 1 -2.3
-0.1
Palmeiras 3 Fortaleza 0 -0.5
Gremio 1 Sao Paulo 2 +0.4
Week of 2/20100.0*Libertadores100.0*Average seed
Corinthians 0 Vasco da Gama 0 -3.3
-0.4
Santos 1 Fluminense 1 No
Gremio 1 Athletico-PR 0 +0.4
+0.1
Goias 0 Bragantino 0 +0.2
+0.2
Bragantino 1 Gremio 0 -0.4
Ceara 2 Botafogo 1 -0.2
Athletico-PR 2 Sport Recife 0 -0.2
Coritiba 0 Ceara 2 -0.2
Internacional 0 Corinthians 0 +0.1
Palmeiras 1 Atletico-GO 1 +0.1
Points
Chance Will Win Championship