How are these numbers calculated?

Big Games

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

Week of 11/19100.0*Serie B100.0*Average seed
Atletico-MG 1 Coritiba 0 -0.3
-0.2
Sao Paulo 4 Figueirense 2 -0.1
Brasiliense 1 Santos 0 -0.1
+0.3
Vasco da Gama 4 Paysandu 0 -0.1
+0.1
Week of 11/27100.0*Serie B100.0*Average seed
Brasiliense 0 Figueirense 2 Yes
-0.5
Sao Caetano 1 Coritiba 1 -0.5
+0.0
Atletico-PR 3 Paysandu 2 -0.2
+0.2
Atletico-MG 0 Vasco da Gama 0 -0.0
Week of 12/4100.0*Serie B100.0*Average seed
Ponte Preta 3 Brasiliense 1 -0.3
Paysandu 1 Flamengo 4 +0.3
Points
Chance Will Win Championship