How are these numbers calculated?

Big Games

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

Week of 11/21100.0*Libetadores100.0*Average seed
Flamengo 0 Goias 0 -0.1
-0.1
Atletico-MG 0 Internacional 1 -0.0
Santo Andre 4 Avai 2 +0.1
Corinthians 2 Nautico 3 +0.2
Vitoria 2 Barueri 1 +0.1
Week of 11/29100.0*Libetadores100.0*Average seed
Goias 4 Sao Paulo 2 +1.1
Gremio 4 Barueri 2 -0.1
Fluminense 4 Vitoria 0 +0.1
Corinthians 0 Flamengo 2 +0.1
Avai 2 Santos 2 +0.1
Week of 12/5100.0*Libetadores100.0*Average seed
Vitoria 2 Goias 2 -1.1
Nautico 0 Avai 1 -0.2
Atletico-MG 0 Corinthians 3 +0.2
Flamengo 2 Gremio 1 +0.1
Points
Chance Will Win Championship