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
Gremio Barueri 1 Fortaleza 0 -7.0
+0.2
Sao Caetano 1 America-RN 2 +4.8
-0.2
Criciuma 2 Gama 0 +4.1
-0.1
ABC 1 Marilia 1 +4.1
-0.4
Parana 1 Ponte Preta 0 +0.8
-0.1
Brasiliense 2 Juventude 2 +0.3
Bahia 2 CRB 0 -0.1
Ceara 2 Santo Andre 3 +0.1
Week of 11/21100.0*Serie C100.0*Average seed
Bahia 2 Marilia 1 +23.2
-0.9
Bragantino 0 Fortaleza 1 +11.2
-0.3
Criciuma 4 Santo Andre 4 -6.9
+0.1
Gremio Barueri 3 America-RN 0 -1.5
+0.1
Brasiliense 2 Vila Nova 1 +1.0
-0.0
ABC 1 Ponte Preta 1 +0.2
-0.0
Ceara 1 Gama 0 +0.1
-0.1
Week of 11/28100.0*Serie C100.0*Average seed
Marilia 2 Ceara 1 -50.8
+1.2
Fortaleza 3 Brasiliense 0 +13.0
-0.3
America-RN 2 Corinthians 0 +6.7
-0.2
Ponte Preta 3 Criciuma 1 -3.6
+0.3
CRB 1 ABC 3 +1.0
-0.1
Points
Chance Will Win Championship