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 +1.0
+0.1
Botafogo 2 Gremio 5 -0.8
-0.0
Week of 2/13100.0*Libertadores100.0*Average seed
Athletico-PR 2 Atletico-GO 1 +8.2
+1.1
Santos 2 Coritiba 0 -1.9
-0.1
Flamengo 2 Corinthians 1 +1.7
+0.1
Gremio 1 Sao Paulo 2 +0.4
Palmeiras 3 Fortaleza 0 -0.2
Sao Paulo 1 Palmeiras 1 -0.2
Week of 2/20100.0*Libertadores100.0*Average seed
Gremio 1 Athletico-PR 0 -14.4
-0.5
Santos 1 Fluminense 1 -3.9
-0.0
Goias 0 Bragantino 0 +1.5
+0.1
Corinthians 0 Vasco da Gama 0 +0.9
+0.2
Athletico-PR 2 Sport Recife 0 +0.8
Bragantino 1 Gremio 0 -0.3
Ceara 2 Botafogo 1 -0.3
Coritiba 0 Ceara 2 -0.1
Internacional 0 Corinthians 0 -0.1
Palmeiras 1 Atletico-GO 1 +0.1
Points
Chance Will Win Championship