How are these numbers calculated?

Big Games

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

Week of 11/21100.0*Serie B100.0*Average seed
Joinville 1 Vasco da Gama 2 -9.3
+0.7
Coritiba 1 Santos 0 +3.1
-0.1
Fluminense 3 Avaí 1 -2.5
+0.1
Figueirense 0 Chapecoense 0 +0.2
Atlético-MG 2 Goiás 2 -0.2
-0.0
Week of 11/28100.0*Serie B100.0*Average seed
Vasco da Gama 1 Santos 0 -19.8
+0.8
Avaí 1 Ponte Preta 0 +4.9
-0.3
Palmeiras 0 Coritiba 2 +4.1
-0.1
São Paulo 3 Figueirense 2 -2.7
+0.1
Chapecoense 1 Goiás 3 +0.4
-0.3
If winner is:HomeEmpateAway
Week of 12/6100.0*Serie B100.0*Average seed
Coritiba vs Vasco da GamaYesYes-41.0
-0.8-0.4+1.2
Figueirense vs Fluminense+16.1-8.6-8.6
-0.3+0.0+0.3
Corinthians vs Avaí-3.1-3.1+17.1
+0.1+0.1-0.3
Goiás vs São Paulo-0.5+0.2+0.2

What If

Chances based on how well the Vasco da Gama finish out the regular season.   Explain

100100100100100100100100100100100100100100100100100100100100
If finish:ChanceChance will finish season at seed
TPW-L-Ewins titleLibertadores1234567891011121314151617181920Serie BCount
431-0-0NoNo115233437.7%14,546,859
410-0-1NoNo305416Yes10,263,964
400-1-0NoNo17326Yes17,610,137
Total:NoNo41819451578.6%42,420,960
Points
Chance Will Win Championship