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
Atletico-GO 1 Santos 1 -2.8
-0.2
Botafogo 2 Gremio 5 -0.3
Week of 2/13100.0*Libertadores100.0*Serie B100.0*Average seed
Athletico-PR 2 Atletico-GO 1 -1.8
-0.9
Santos 2 Coritiba 0 -0.8
-0.1
Flamengo 2 Corinthians 1 +0.6
+0.1
Palmeiras 3 Fortaleza 0 -0.3
+0.1
Atletico-MG 1 Bahia 1 No
Week of 2/20100.0*Libertadores100.0*Serie B100.0*Average seed
Atletico-GO 3 Coritiba 1 +0.3
Palmeiras 1 Atletico-GO 1 -0.3
Coritiba 0 Ceara 2 -0.2
Ceara 2 Botafogo 1 -0.1
Sport Recife 2 Atletico-MG 3 +0.1
Fortaleza 0 Bahia 4 +0.0
Points
Chance Will Win Championship