How are these numbers calculated?

Big Games

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

Week of 11/18100.0*Serie B100.0*Average seed
Juventude 3 Palmeiras 2 -1.7
+1.1
Fortaleza 1 Ponte Preta 0 -1.1
+0.0
Corinthians 1 Fluminense 1 -0.2
+0.1
Sao Caetano 0 Vasco da Gama 1 -0.1
Sao Paulo 1 Atletico-PR 1 -0.0
Cruzeiro 1 Santos 1 -0.0
Week of 11/26100.0*Serie B100.0*Average seed
Juventude 2 Fortaleza 2 -0.4
Goias 3 Ponte Preta 0 -0.1
Atletico-PR 1 Figueirense 4 +0.1
Gremio 3 Flamengo 0 +0.1
Palmeiras 1 Internacional 4 +0.1
Sao Paulo 2 Cruzeiro 0 +0.1
Botafogo 0 Corinthians 0 -0.0
Week of 12/2100.0*Serie B100.0*Average seed
Corinthians 5 Juventude 3 -0.7
Flamengo 4 Sao Caetano 1 -0.2
Cruzeiro 3 Botafogo 1 -0.1
Ponte Preta 1 Atletico-PR 1 +0.0
Points
Chance Will Win Championship