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 -23.5
+1.1
Gremio Barueri 1 Fortaleza 0 -4.8
+0.1
Criciuma 2 Gama 0 +3.6
-0.1
ABC 1 Marilia 1 -0.4
+0.1
Parana 1 Ponte Preta 0 +0.4
-0.2
Brasiliense 2 Juventude 2 +0.3
+0.0
Bahia 2 CRB 0 +0.1
-0.1
Parana 4 CRB 0 -0.1
Week of 11/21100.0*Serie C100.0*Average seed
Gremio Barueri 3 America-RN 0 +10.1
-0.8
Bragantino 0 Fortaleza 1 +4.2
-0.1
Bahia 2 Marilia 1 -4.1
+0.1
Criciuma 4 Santo Andre 4 -1.2
+0.1
ABC 1 Ponte Preta 1 +0.3
+0.1
Ceara 1 Gama 0 +0.1
-0.1
Brasiliense 2 Vila Nova 1 -0.2
Week of 11/28100.0*Serie C100.0*Average seed
America-RN 2 Corinthians 0 No
+1.2
Marilia 2 Ceara 1 +20.6
-0.4
Fortaleza 3 Brasiliense 0 +14.2
-0.3
Ponte Preta 3 Criciuma 1 -11.7
+0.2
CRB 1 ABC 3 -0.2
Points
Chance Will Win Championship