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 C100.0*Average seed
Avai 1 Nautico 1 -0.0
-0.2
CRB 3 Ituano 4 -0.2
Portuguesa 2 Ceara 4 -0.1
Vila Nova 2 Paysandu 1 +0.0
Gama 3 Marilia 0 -0.1
Week of 11/18100.0*Serie C100.0*Average seed
Avai 1 CRB 2 -1.3
Paulista 9 Paysandu 0 No
+0.0
Portuguesa 2 Vila Nova 0 No
+0.1
Remo 3 Sao Raimundo-AM 0 No
-0.1
Ceara 0 Atletico-MG 1 +0.1
Nautico 2 Ituano 0 +0.1
Gama 1 Coritiba 1 +0.1
Week of 11/25100.0*Serie C100.0*Average seed
Coritiba 4 Avai 2 -0.5
CRB 2 Remo 1 +0.2
Sao Raimundo-AM 2 Gama 0 +0.1
Ituano 4 Ceara 1 +0.0
Points
Chance Will Win Championship