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 +33.1
-1.6
CRB 3 Ituano 4 -3.8
+0.1
Sao Raimundo-AM 3 Santo Andre 2 +2.8
-0.2
Guarani 1 America-RN 2 -2.7
+0.2
Vila Nova 2 Paysandu 1 +1.1
-0.0
Week of 11/18100.0*Serie C100.0*Average seed
Portuguesa 2 Vila Nova 0 -9.0
+0.9
Paulista 9 Paysandu 0 -2.7
+0.1
Avai 1 CRB 2 +2.2
-0.4
Guarani 2 Sport Recife 0 +1.3
-0.3
Remo 3 Sao Raimundo-AM 0 -1.0
+0.1
Ceara 0 Atletico-MG 1 -0.2
Week of 11/25100.0*Serie C100.0*Average seed
Sport Recife 2 Portuguesa 3 No
+2.7
CRB 2 Remo 1 +5.8
-0.3
Paysandu 4 Marilia 1 +5.8
-0.3
Sao Raimundo-AM 2 Gama 0 +5.8
-0.5
Vila Nova 1 Guarani 5 +1.2
-0.2
Ituano 4 Ceara 1 +0.1
Points
Chance Will Win Championship