How are these numbers calculated?

Big Games

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

Week of 11/22100.0*Serie B100.0*Average seed
Bahia 1 Atlético-PR 2 -0.1
Week of 11/29100.0*Serie B100.0*Average seed
Internacional 3 Palmeiras 1 No
+0.0
Flamengo 4 Vitória 0 No
-0.1
Atlético-PR 1 Goiás 0 -0.6
Santos 2 Botafogo 0 -0.1
Atlético-MG 1 Coritiba 2 -0.1
Chapecoense 1 Cruzeiro 1 +0.1
São Paulo 1 Figueirense 1 +0.1
Week of 12/6100.0*Serie B100.0*Average seed
Goiás 4 Chapecoense 2 +1.3
Coritiba 3 Bahia 2 -0.3
Figueirense 1 Internacional 2 +0.2
Points  (Full Screen)
Chance Will Win Championship  (Full Screen)