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 -1.6
-0.3
Parana 1 Gremio 1 +1.0
+0.0
Sao Paulo 3 Vitoria 2 +0.9
+0.1
Sunday100.0*Chance in playoffs100.0*Average seed
Cruzeiro 2 Goias 0 Out
-1.3
Ponte Preta 2 Fluminense 3 -6.7
+0.2
Gremio 1 Atletico-MG 0 -3.8
-0.1
Gama 4 Coritiba 0 +3.2
+0.3
Sao Caetano 3 Santos 2 +1.3
+0.1
Vitoria 4 Palmeiras 3 -0.4
Points
Chance Will Make Playoffs