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
Vila Nova 2 Paysandu 1 -22.7
+1.2
CRB 3 Ituano 4 -4.4
+0.1
Sao Raimundo-AM 3 Santo Andre 2 +2.8
-0.2
Guarani 1 America-RN 2 -2.2
+0.1
Portuguesa 2 Ceara 4 -1.3
Gama 3 Marilia 0 -0.0
Week of 11/18100.0*Serie C100.0*Average seed
Portuguesa 2 Vila Nova 0 +10.1
-0.7
Avai 1 CRB 2 +5.9
Guarani 2 Sport Recife 0 +3.5
-0.1
Remo 3 Sao Raimundo-AM 0 -2.7
-0.1
Paulista 9 Paysandu 0 -2.4
+0.1
Ceara 0 Atletico-MG 1 -0.1
+0.2
Week of 11/25100.0*Serie C100.0*Average seed
Vila Nova 1 Guarani 5 +61.2
-2.3
Sport Recife 2 Portuguesa 3 +10.7
-0.4
Paysandu 4 Marilia 1 +8.3
-0.3
Sao Raimundo-AM 2 Gama 0 +8.2
-0.3
CRB 2 Remo 1 +7.6
-0.2
Ituano 4 Ceara 1 +0.2
Points
Chance Will Win Championship