How are these numbers calculated?

Big Games

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

Week of 1/15100.0*Serie C100.0*Average seed
Figueirense 3 Brasil de Pelotas 0 -20.8
+0.7
CRB 5 Figueirense 1 +18.3
-0.5
Guarani 1 Vitoria 2 +10.4
-0.2
Nautico 4 Oeste 1 +7.9
-0.2
Ponte Preta 2 Nautico 0 -4.5
+0.1
Parana 0 Cuiaba 2 -3.6
+0.1
Sampaio Correa 2 Parana 1 -3.4
+0.1
Botafogo-SP 1 CSA 3 -1.1
+0.1
Oeste 0 Confianca 1 +0.4
-0.1
Vitoria 0 Chapecoense 0 +0.1
America-MG 1 Botafogo-SP 1 -0.1
Week of 1/22100.0*Serie C100.0*Average seed
Juventude 2 Figueirense 1 +15.2
-0.4
Cruzeiro 0 Nautico 0 +5.0
-0.1
Vitoria 1 Botafogo-SP 0 Yes
Oeste 1 Parana 0 -0.5
+0.3
Week of 1/29100.0*Serie C100.0*Average seed
Figueirense 2 Ponte Preta 7 -0.2
Parana 0 Cruzeiro 0 +0.1
Points
Chance Will Win Championship