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
CRB 3 Ituano 4 +25.5
-1.4
Portuguesa 2 Ceara 4 -2.2
+0.1
Guarani 1 America-RN 2 -2.2
+0.2
Sao Raimundo-AM 3 Santo Andre 2 +1.6
-0.2
Vila Nova 2 Paysandu 1 +0.6
-0.1
Week of 11/18100.0*Serie C100.0*Average seed
Avai 1 CRB 2 -35.5
+1.6
Paulista 9 Paysandu 0 -2.4
+0.1
Guarani 2 Sport Recife 0 +0.9
-0.3
Portuguesa 2 Vila Nova 0 +0.6
-0.2
Remo 3 Sao Raimundo-AM 0 -0.3
+0.1
Week of 11/25100.0*Serie C100.0*Average seed
CRB 2 Remo 1 -43.5
+1.2
Sport Recife 2 Portuguesa 3 +26.0
-0.6
Paysandu 4 Marilia 1 +5.3
-0.2
Sao Raimundo-AM 2 Gama 0 +5.3
-0.3
Vila Nova 1 Guarani 5 -3.0
+0.1
Points
Chance Will Win Championship