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*Average seed
Ipatinga 2 Duque de Caxias 0 -0.8
Bragantino 5 Vila Nova 1 -0.1
ASA 0 Parana 1 -0.1
Ponte Preta 0 Icasa 1 +0.1
Sao Caetano 0 America-MG 0 +0.1
Week of 11/19100.0*Average seed
Sao Caetano 1 Duque de Caxias 0 -1.3
Brasiliense 2 Ponte Preta 1 +0.2
ASA 1 America-RN 2 +0.2
Nautico 4 Vila Nova 1 -0.1
Icasa 2 Coritiba 2 +0.1
Parana 0 Bragantino 0 -0.0
Week of 11/26100.0*Average seed
Duque de Caxias 1 ASA 1 -0.6
Ipatinga 2 Icasa 2 +0.4
Bragantino 2 Bahia 0 -0.4
Santo Andre 1 Nautico 0 +0.2
Points
Chance Will Win Championship