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
Figueirense 2 Vitoria 0 No
+0.7
Chapecoense 2 Botafogo 0 +0.1
-0.1
Coritiba 2 Palmeiras 0 +0.0
Cruzeiro 2 Goias 1 +0.1
Bahia 1 Atletico-PR 2 -0.1
Santos 0 Sao Paulo 1 +0.0
Flamengo 1 Criciuma 1 +0.0
Week of 11/29100.0*Serie B100.0*Average seed
Sao Paulo 1 Figueirense 1 -0.2
Flamengo 4 Vitoria 0 -0.1
Atletico-PR 1 Goias 0 +0.1
Santos 2 Botafogo 0 -0.1
Criciuma 2 Sport Recife 2 +0.1
Atletico-MG 1 Coritiba 2 -0.1
Chapecoense 1 Cruzeiro 1 +0.0
Week of 12/6100.0*Serie B100.0*Average seed
Goias 4 Chapecoense 2 -0.6
Figueirense 1 Internacional 2 -0.4
Points
Chance Will Win Championship