How are these numbers calculated?

Big Games

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

Thursday100.0*Serie B100.0*Average seed
Guarani 2 Botafogo 0 -0.9
+0.2
Parana 1 Gremio 1 +0.6
Fluminense 2 Portuguesa 0 -0.4
+0.0
Sunday100.0*Serie B100.0*Average seed
Paysandu 0 Internacional 2 -79.3
+2.4
Figueirense 2 Parana 2 -0.5
+0.0
Vitoria 4 Palmeiras 3 -0.4
+0.2
Portuguesa 2 Bahia 4 +0.2
-0.1
Botafogo 0 Sao Paulo 1 +0.2
Points
Chance Will Make Playoffs