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
Ipatinga 2 Duque de Caxias 0 -9.7
+0.7
America-RN 5 Guaratingueta 2 -4.3
Bragantino 5 Vila Nova 1 -1.0
Ponte Preta 0 Icasa 1 +0.8
-0.1
Brasiliense 0 Nautico 1 -0.6
+0.1
Sport Recife 1 Santo Andre 1 -0.1
+0.0
Week of 11/19100.0*Serie C100.0*Average seed
Portuguesa 2 Ipatinga 1 +16.8
-0.6
Nautico 4 Vila Nova 1 -5.6
+0.1
Brasiliense 2 Ponte Preta 1 +4.8
-0.3
Guaratingueta 2 Figueirense 2 +4.0
-0.1
ASA 1 America-RN 2 +2.8
-0.3
Bahia 1 Santo Andre 2 -0.2
Week of 11/26100.0*Serie C100.0*Average seed
Ipatinga 2 Icasa 2 -0.6
Santo Andre 1 Nautico 0 -0.3
America-RN 1 Brasiliense 2 +0.2
Vila Nova 2 Sao Caetano 1 -0.1
Points
Chance Will Win Championship