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
Botafogo 2 Gremio 5 -1.3
Atletico-GO 1 Santos 1 +1.1
+0.1
Week of 2/13100.0*Libertadores100.0*Average seed
Athletico-PR 2 Atletico-GO 1 +9.1
+1.1
Flamengo 2 Corinthians 1 +2.5
+0.1
Santos 2 Coritiba 0 -2.4
-0.2
Gremio 1 Sao Paulo 2 +0.4
Palmeiras 3 Fortaleza 0 -0.4
Sao Paulo 1 Palmeiras 1 -0.1
Week of 2/20100.0*Libertadores100.0*Average seed
Gremio 1 Athletico-PR 0 -15.4
-0.6
Santos 1 Fluminense 1 -3.2
-0.0
Goias 0 Bragantino 0 +1.5
+0.1
Corinthians 0 Vasco da Gama 0 +1.2
+0.1
Athletico-PR 2 Sport Recife 0 +0.9
Ceara 2 Botafogo 1 -0.4
Bragantino 1 Gremio 0 -0.3
Coritiba 0 Ceara 2 -0.1
Palmeiras 1 Atletico-GO 1 +0.1
Internacional 0 Corinthians 0 -0.1
Points
Chance Will Win Championship