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 A100.0*Average seed
Bragantino 3 Avai 2 +5.8
+0.6
Gremio Barueri 1 Fortaleza 0 -3.4
-0.1
Parana 1 Ponte Preta 0 +0.9
+0.2
Ceara 2 Santo Andre 3 -0.4
Corinthians 3 Vila Nova 1 +0.2
+0.0
Brasiliense 2 Juventude 2 +0.2
+0.1
Sao Caetano 1 America-RN 2 +0.1
Sao Caetano 2 Juventude 1 +0.0
Week of 11/21100.0*Serie A100.0*Average seed
Bragantino 0 Fortaleza 1 No
-0.6
Gremio Barueri 3 America-RN 0 No
-0.1
Brasiliense 2 Vila Nova 1 +0.1
ABC 1 Ponte Preta 1 +0.0
Week of 11/28100.0*Serie A100.0*Average seed
Vila Nova 2 Bragantino 0 -0.6
Ponte Preta 3 Criciuma 1 -0.3
Points
Chance Will Win Championship