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
America-RN 5 Guaratingueta 2 -3.5
+0.6
Ipatinga 2 Duque de Caxias 0 +0.2
-0.2
Bragantino 5 Vila Nova 1 -0.2
Brasiliense 0 Nautico 1 +0.1
+0.1
Sport Recife 1 Santo Andre 1 +0.0
Week of 11/19100.0*Serie C100.0*Average seed
ASA 1 America-RN 2 -14.3
+0.9
Nautico 4 Vila Nova 1 -1.4
Portuguesa 2 Ipatinga 1 -1.3
+0.1
Guaratingueta 2 Figueirense 2 -0.2
Bahia 1 Santo Andre 2 -0.3
Brasiliense 2 Ponte Preta 1 -0.2
Week of 11/26100.0*Serie C100.0*Average seed
America-RN 1 Brasiliense 2 Yes
-1.4
Coritiba 2 Guaratingueta 3 +11.5
-0.2
Vila Nova 2 Sao Caetano 1 +7.9
-0.2
Santo Andre 1 Nautico 0 -0.4
Ipatinga 2 Icasa 2 -0.1
Points
Chance Will Win Championship