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
Portuguesa 2 Ceara 4 -26.9
+2.0
CRB 3 Ituano 4 -3.4
+0.0
Guarani 1 America-RN 2 -2.5
+0.1
Sao Raimundo-AM 3 Santo Andre 2 +2.2
-0.1
Vila Nova 2 Paysandu 1 +0.9
-0.0
Gama 3 Marilia 0 -0.1
Week of 11/18100.0*Serie C100.0*Average seed
Ceara 0 Atletico-MG 1 +0.3
-0.9
Paulista 9 Paysandu 0 -0.2
+0.1
Portuguesa 2 Vila Nova 0 +0.1
+0.1
Remo 3 Sao Raimundo-AM 0 -0.1
-0.2
Avai 1 CRB 2 +0.2
Nautico 2 Ituano 0 +0.1
Gama 1 Coritiba 1 -0.0
Week of 11/25100.0*Serie C100.0*Average seed
Ituano 4 Ceara 1 -0.8
Sport Recife 2 Portuguesa 3 -0.5
Vila Nova 1 Guarani 5 +0.3
CRB 2 Remo 1 +0.0
Coritiba 4 Avai 2 +0.0
Points
Chance Will Win Championship