How are these numbers calculated?

Big Games

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

Week of 11/17100.0*Serie B**100.0*Average seed
Sport 2 Botafogo 0 +10.7
-0.2
Bahia 1 Ponte Preta 0 +3.9
-0.2
Flamengo 1 Palmeiras 1 -0.5
Portuguesa 2 Gremio 2 +0.3
-0.2
Week of 11/24100.0*Serie B**100.0*Average seed
Inter 0 Portuguesa 2 -26.4
+0.7
Sport 1 Fluminense 1 -1.7
+0.0
Bahia 1 Nautico 1 -0.7
+0.1
Ponte Preta 0 Sao Paulo 0 -0.0
If winner is:HomeDrawAway
Week of 12/1100.0*Serie B**100.0*Average seed
Nautico vs SportNoNo+17.0
Portuguesa vs Ponte PretaNoNo+17.0
+1.1-0.2-0.9
Atletico-GO vs Bahia-6.0+3.4+3.4
+0.3+0.0-0.3
Coritiba vs Figueirense-0.2+0.1+0.1

What If

Chances based on how well the Portuguesa finish out the regular season.   Explain

100100100100100100100100100100100100100100100100100100100100
If finish:ChanceChance will finish season at seedSerie
TPW-D-Lwins titleLibertadores*1234567891011121314151617181920B**Count
471-0-0NoNo2151262No5,586,212
450-1-0NoNo6436No4,260,687
440-0-1NoNo17572726.7%5,579,821
Total:NoNo8183331109.7%15,426,720
Points
Chance Will Win Championship