How are these numbers calculated?

Big Games

How we did last week and who we should root for this week.   Explain

Week of 11/13100.0*Serie C100.0*Average seed
ABC 6 Brasiliense 2 +1.6
-1.1
Ipatinga 1 Atletico-GO 0 +0.7
-0.1
Vasco da Gama 2 America-RN 1 -0.6
+0.1
Ponte Preta 1 Bahia 3 +0.5
-0.1
Vila Nova 2 Fortaleza 1 -0.2
-0.1
Parana 3 Campinense 0 +0.2
-0.2
Sao Caetano 0 Juventude 0 -0.2
+0.2
Figueirense 2 Bragantino 1 +0.1
Portuguesa 1 Duque de Caxias 1 +0.0
Week of 11/21100.0*Serie C100.0*Average seed
Bragantino 1 Brasiliense 2 No
+1.7
Juventude 1 Atletico-GO 3 -2.1
+0.2
America-RN 1 Ipatinga 0 +2.1
+0.0
Bahia 2 Guarani 0 +1.2
-0.2
Figueirense 1 Duque de Caxias 2 -0.1
Fortaleza 1 Sao Caetano 2 -0.1
Vila Nova 2 Parana 2 -0.1
Week of 11/27100.0*Serie C100.0*Average seed
Brasiliense 2 Vila Nova 1 +2.0
Atletico-GO 0 Bahia 3 -0.3
ABC 0 Bragantino 1 -0.2
Sao Caetano 2 Figueirense 1 -0.1
Duque de Caxias 4 Ponte Preta 1 -0.1
Ceara 0 America-RN 0 +0.1
Parana 1 Fortaleza 1 +0.1
Points
Chance Will Win Championship