How are these numbers calculated?

Big Games

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

Week of 3/26100.0*Chance in playoffs100.0*Average seed
Sao Bento 1 XV de Piracicaba 0 +2.8
+0.1
Linense 5 Capivariano 0 -1.3
Linense 1 Sao Paulo 1 +0.9
Capivariano 1 Sao Bento 1 -0.8
-0.2
Ferroviaria 2 Oeste 0 +0.3
Botafogo 1 Audax 1 +0.1
Santos 4 Ferroviaria 1 -0.2
Santos 1 Sao Paulo 1 +0.1
Week of 4/2100.0*Chance in playoffs100.0*Average seed
XV de Piracicaba 1 Linense 1 In
Audax 2 Sao Bento 1 -3.2
-0.2
Capivariano 3 Santos 5 -0.1
Week of 4/10None
Points
Chance Will Make Playoffs