How are these numbers calculated?

Big Games

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

Week of 11/6100.0*Serie C100.0*Average seed
Santa Cruz 1 Ponte Preta 1 +13.1
-0.4
Paulista 3 Vitoria 0 +4.3
-0.2
Marilia 4 Santo Andre 2 -3.2
+0.1
Avai 1 Coritiba 0 +2.5
-0.1
CRB 2 Criciuma 0 +1.4
-0.1
Gama 0 Ipatinga 2 -1.3
Ceara 1 Brasiliense 3 +0.3
Sao Caetano 2 Ituano 2 -0.1
Week of 11/13100.0*Serie C100.0*Average seed
Brasiliense 3 Santa Cruz 0 +11.7
-0.4
Criciuma 1 Paulista 2 +8.5
-0.3
Santo Andre 1 Gama 0 +4.7
-0.1
Criciuma 2 Santa Cruz 0 Yes
-0.1
Barueri 0 Gama 2 +2.1
-0.1
Santo Andre 3 Avai 0 +1.7
-0.1
Fortaleza 2 Paulista 1 -0.8
+0.0
Fortaleza 0 Sao Caetano 1 +0.5
Ituano 0 CRB 1 +0.3
Ponte Preta 0 Avai 0 +0.2
Ponte Preta 1 Ceara 1 +0.1
Vitoria 4 CRB 1 -0.1
Week of 11/24None
Points
Chance Will Win Championship