How are these numbers calculated?

Big Games

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

Week of 11/29100.0*Serie B100.0*Average seed
Fluminense 2 Sao Caetano 1 -16.5
+1.4
Criciuma 0 Gremio 2 +1.4
-0.1
Corinthians 1 Bahia 2 +1.3
-0.1
Fortaleza 5 Parana 3 +1.1
-0.2
Juventude 1 Atletico-MG 0 +0.7
-0.2
Ponte Preta 1 Sao Paulo 2 -0.6
+0.1
Cruzeiro 2 Paysandu 1 -0.1
+0.1
Vasco da Gama 1 Figueirense 0 -0.1
Week of 12/6100.0*Serie B100.0*Average seed
Cruzeiro 5 Fluminense 2 +3.6
-0.6
Criciuma 3 Bahia 2 -2.5
+0.1
Guarani 2 Paysandu 1 -1.3
+0.2
Fortaleza 2 Coritiba 2 +0.9
-0.0
Santos 2 Gremio 2 -0.7
+0.0
Flamengo 1 Ponte Preta 1 +0.1
+0.0
Juventude 2 Sao Caetano 1 -0.2
Atletico-PR 2 Vasco da Gama 2 -0.0
Week of 12/13100.0*Serie B100.0*Average seed
Gremio 3 Corinthians 0 +6.8
-0.5
Ponte Preta 2 Fortaleza 0 +5.8
+0.1
Fluminense 1 Juventude 0 No
+1.0
Paysandu 2 Atletico-PR 2 +2.2
-0.0
Bahia 0 Cruzeiro 7 -1.7
+0.1
Points
Chance Will Win Championship