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*Average seed
CRB 0 Paysandu 1 +0.7
Goias 3 Joinville 2 -0.2
Ceara 2 Vila Nova 3 -0.1
Parana 1 Criciuma 2 -0.1
Brasil de Pelotas 1 Oeste 1 +0.0
Luverdense 2 Bahia 2 -0.0
Week of 11/18100.0*Average seed
Goias 2 Sampaio Correa 1 -0.4
Vila Nova 2 Paysandu 2 -0.3
Criciuma 1 Vasco da Gama 0 -0.1
Brasil de Pelotas 1 CRB 0 -0.1
Luverdense 1 Goias 0 +0.1
Week of 11/25100.0*Average seed
Paysandu 1 Criciuma 2 -0.4
Points
Chance Will Win Championship