How are these numbers calculated?

Big Games

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

Week of 11/11100.0*Serie C100.0*Average seed
Goias 3 Joinville 2 -10.2
+0.1
Bragantino 1 Vasco da Gama 2 -3.5
+0.1
Brasil de Pelotas 1 Oeste 1 -1.6
Atletico-GO 5 Tupi 3 -0.4
Parana 1 Criciuma 2 -0.1
+0.1
Week of 11/18100.0*Serie C100.0*Average seed
Oeste 0 Joinville 2 +21.6
-0.4
Bahia 3 Bragantino 2 -2.1
+0.1
Ceara 1 Parana 1 -0.1
Week of 11/25100.0*Serie C100.0*Average seed
Nautico 0 Oeste 2 No
+0.3
Joinville 4 Vila Nova 2 +29.3
-0.3
Points
Chance Will Win Championship