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
Fluminense 2 Ponte Preta 0 -5.9
+0.1
Vitoria 1 Cruzeiro 1 +3.9
-0.2
Sport Recife 1 Bahia 0 +3.7
-0.2
Avai 2 Palmeiras 1 +2.4
-0.1
Atletico-MG 3 Coritiba 0 -1.4
+0.1
Atletico-GO 1 Chapecoense 1 -0.2
Atletico-PR 3 Vasco da Gama 1 +0.1
Sao Paulo 0 Botafogo 0 *+0.1
Week of 11/25100.0*Serie B100.0*Average seed
Fluminense 1 Sport Recife 2 +8.8
-0.2
Week of 12/3100.0*Serie B100.0*Average seed
Vitoria 1 Flamengo 2 +27.2
-0.8
Sport Recife 1 Corinthians 0 +18.1
-0.3
Chapecoense 2 Coritiba 1 -11.3
+0.3
Santos 1 Avai 1 -11.3
+0.2
Atletico-GO 1 Fluminense 1 -0.1

* A starred number could be exactly 0 or just really small. The simulation did not run long enough to know.

Points
Chance Will Win Championship