How are these numbers calculated?

Big Games

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

Week of 12/4100.0*Serie B100.0*Average seed
Criciuma 1 Parana 2 +16.8
-1.3
Vitoria 1 Sao Paulo 4 -3.3
+0.1
Juventude 1 Botafogo 0 -2.3
+0.1
Atletico-MG 0 Paysandu 0 -1.2
+0.1
Guarani 2 Figueirense 1 +1.0
Flamengo 0 Coritiba 0 +0.7
Corinthians 3 Vasco da Gama 1 -0.5
+0.1
Week of 12/11100.0*Serie B100.0*Average seed
Palmeiras 3 Criciuma 2 +20.2
-1.1
Cruzeiro 4 Vitoria 0 -5.3
+0.3
Botafogo 1 Corinthians 2 -4.4
+0.1
Gremio 0 Atletico-MG 1 +4.3
-0.2
Sao Paulo 1 Flamengo 1 +2.0
Vasco da Gama 1 Atletico-PR 0 +1.7
-0.2
Paysandu 4 Guarani 2 +0.3
-0.1
Week of 12/19100.0*Serie B100.0*Average seed
Criciuma 3 Coritiba 3 -13.7
+0.1
Atletico-MG 3 Sao Caetano 0 +8.3
-0.4
Atletico-PR 1 Botafogo 1 +6.9
-0.1
Vitoria 1 Ponte Preta 2 -4.2
+0.3
Flamengo 6 Cruzeiro 2 +1.0
-0.2
Points
Chance Will Win Championship