How are these numbers calculated?

Big Games

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

Week of 11/11100.0*Serie A100.0*Average seed
Sao Raimundo-AM 3 Santo Andre 2 -1.9
-0.6
Coritiba 2 Atletico-MG 3 +0.9
+0.1
Guarani 1 America-RN 2 -0.9
-0.0
Avai 1 Nautico 1 -0.1
Gama 3 Marilia 0 +0.1
Week of 11/18100.0*Serie A100.0*Average seed
America-RN 1 Santo Andre 2 +0.9
Marilia 1 Brasiliense 1 +0.1
Paulista 9 Paysandu 0 -0.0
Nautico 2 Ituano 0 +0.0
Week of 11/25100.0*Serie A100.0*Average seed
Santo Andre 1 Nautico 1 -0.4
Brasiliense 3 Paulista 4 +0.3
Coritiba 4 Avai 2 -0.2
Points
Chance Will Win Championship