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 Atletico-PR 2 +7.8
-0.5
Coritiba 2 Palmeiras 0 +1.1
-0.1
Figueirense 2 Vitoria 0 -0.9
Chapecoense 2 Botafogo 0 +0.6
+0.2
Flamengo 1 Criciuma 1 +0.1
Week of 11/29100.0*Serie B100.0*Average seed
Bahia 1 Gremio 0 -5.5
+0.6
Internacional 3 Palmeiras 1 -1.3
Flamengo 4 Vitoria 0 -0.5
+0.0
Santos 2 Botafogo 0 +0.2
Criciuma 2 Sport Recife 2 +0.0
Week of 12/6100.0*Serie B100.0*Average seed
Coritiba 3 Bahia 2 Yes
-0.4
Palmeiras 1 Atletico-PR 1 Yes
-0.1
Vitoria 0 Santos 1 -5.5
+0.1
Points
Chance Will Win Championship