How are these numbers calculated?

Big Games

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

Week of 11/13100.0*Relegated100.0*Average seed
Vila Nova/GO 2 Fortaleza/CE 1 +7.9
-0.4
Ponte Preta/SP 1 Bahia/BA 3 +3.1
-0.1
Ipatinga/MG 1 Atlético/GO 0 +2.4
-0.1
ABC/RN 6 Brasiliense/DF 2 -1.9
-0.1
Vasco/RJ 2 América/RN 1 -1.0
+0.0
São Caetano/SP 0 Juventude/RS 0 +0.6
Paraná/PR 3 Campinense/PB 0 +0.1
Week of 11/21100.0*Relegated100.0*Average seed
América/RN 1 Ipatinga/MG 0 Yes
Bragantino/SP 1 Brasiliense/DF 2 Yes
Fortaleza/CE 1 São Caetano/SP 2 Yes
-0.2
Campinense/PB 3 ABC/RN 1 +0.1
Week of 11/27100.0*Relegated100.0*Average seed
ABC/RN 0 Bragantino/SP 1 +0.2
Portuguesa/SP 1 Campinense/PB 1 -0.2
Points
Chance Will Win Championship