How are these numbers calculated?

Big Games

How we did yesterday and who we should root for today.   Explain

Thursday100.0*Chance in playoffs100.0*Average seed
Fluminense 2 Portuguesa 0 +24.2
+1.9
Sao Paulo 3 Vitoria 2 +2.6
+0.2
Parana 1 Gremio 1 -0.2
-0.0
Guarani 2 Botafogo 0 -0.1
Sunday100.0*Chance in playoffs100.0*Average seed
Ponte Preta 2 Fluminense 3 In
+2.1
Gremio 1 Atletico-MG 0 -5.6
-0.2
Gama 4 Coritiba 0 +4.4
+0.3
Cruzeiro 2 Goias 0 -4.1
-0.2
Vitoria 4 Palmeiras 3 -0.2
Sao Caetano 3 Santos 2 +0.1
Points
Chance Will Make Playoffs