How are these numbers calculated?

Big Games

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

Week of 11/14100.0*Serie C100.0*Average seed
Sao Caetano 1 America-RN 2 +0.1
Bahia 2 CRB 0 No
+0.5
Gremio Barueri 1 Fortaleza 0 *No
Ceara 2 Santo Andre 3 +0.2
Sao Caetano 2 Juventude 1 -0.2
ABC 1 Marilia 1 +0.1
Parana 1 Ponte Preta 0 -0.1
Parana 4 CRB 0 -0.1
Brasiliense 2 Juventude 2 +0.1
Week of 11/21100.0*Serie C100.0*Average seed
Bahia 2 Marilia 1 +0.6
Ceara 1 Gama 0 -0.1
Week of 11/28100.0*Serie C100.0*Average seed
Gama 0 Bahia 0 -0.3
Santo Andre 3 Parana 1 +0.1

* A starred number could be exactly 0 or just really small. The simulation did not run long enough to know.

Points
Chance Will Win Championship