How are these numbers calculated?

Big Games

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

Week of 11/12100.0*Serie C100.0*Average seed
Bragantino 5 Vila Nova 1 No
+1.3
Ipatinga 2 Duque de Caxias 0 +0.2
+0.1
ASA 0 Parana 1 -0.1
America-RN 5 Guaratingueta 2 +0.0
Ponte Preta 0 Icasa 1 +0.0
Week of 11/19100.0*Serie C100.0*Average seed
Parana 0 Bragantino 0 -0.3
Brasiliense 2 Ponte Preta 1 +0.2
Nautico 4 Vila Nova 1 -0.1
Icasa 2 Coritiba 2 +0.1
ASA 1 America-RN 2 +0.1
Sao Caetano 1 Duque de Caxias 0 -0.0
Week of 11/26100.0*Serie C100.0*Average seed
Bragantino 2 Bahia 0 +1.6
Vila Nova 2 Sao Caetano 1 +0.2
Ipatinga 2 Icasa 2 +0.2
Santo Andre 1 Nautico 0 +0.2
Ponte Preta 0 America-MG 0 +0.1
Duque de Caxias 1 ASA 1 +0.1
Points
Chance Will Win Championship