How are these numbers calculated?

Big Games

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

Week of 11/15100.0*Serie B100.0*Average seed
Flamengo 1 Internacional 0 -31.1
+1.5
Sao Paulo 3 Flamengo 1 +13.7
-0.6
Sport Recife 1 Botafogo-SP 2 +3.2
-0.1
Coritiba 1 Santa Cruz 0 -3.0
+0.1
America-MG 1 Bahia 2 -2.9
+0.1
Portuguesa 1 Cruzeiro 3 +2.3
-0.1
Santa Cruz 2 America-MG 1 -2.3
-0.0
Botafogo-SP 2 Vitoria 0 +2.0
-0.2
Ponte Preta 1 Juventude 0 -1.8
+0.1
Botafogo 2 Corinthians 4 -1.6
Gama 4 Atletico-PR 1 +1.0
-0.1
Bahia 2 Gama 1 -0.7
+0.0
Juventude 1 Botafogo 3 +0.2
Guarani 1 Parana 0 +0.1
Vasco da Gama 2 Gremio 0 *+0.1
Week of 11/24100.0*Serie B100.0*Average seed
Portuguesa 2 Botafogo 1 -0.1
Week of 12/1100.0*Serie B100.0*Average seed
Flamengo 2 Palmeiras 0 No
+1.2
Guarani 1 Santa Cruz 2 +17.3
-0.4
America-MG 1 Juventude 1 -13.2
+0.1
Gama 5 Botafogo-SP 0 -11.6
+0.2
Cruzeiro 4 Internacional 2 -0.1
Botafogo 2 Sao Caetano 4 +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 Make Playoffs