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
Corinthians 3 Vila Nova 1 -4.6
-0.2
Gremio Barueri 1 Fortaleza 0 -4.1
-0.1
Parana 1 Ponte Preta 0 +0.9
+0.2
Ceara 2 Santo Andre 3 -0.6
Bragantino 3 Avai 2 -0.4
-0.2
Brasiliense 2 Juventude 2 +0.1
+0.0
Sao Caetano 2 Juventude 1 +0.1
Week of 11/21100.0*Serie A100.0*Average seed
Brasiliense 2 Vila Nova 1 No
-0.4
Gremio Barueri 3 America-RN 0 No
Bragantino 0 Fortaleza 1 +0.2
Week of 11/28100.0*Serie A100.0*Average seed
Vila Nova 2 Bragantino 0 +1.0
Juventude 3 Gremio Barueri 2 -0.3
Ponte Preta 3 Criciuma 1 -0.2
Avai 2 Sao Caetano 2 +0.0
Points
Chance Will Win Championship