How are these numbers calculated?

Big Games

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

Week of 11/22100.0*Serie B100.0*Average seed
Coritiba 2 Palmeiras 0 +18.0
-0.9
Figueirense 2 Vitória 0 -4.1
+0.0
Chapecoense 2 Botafogo 0 +2.4
-0.2
Bahia 1 Atlético-PR 2 -1.1
Cruzeiro 2 Goiás 1 +0.1
Week of 11/29100.0*Serie B100.0*Average seed
Internacional 3 Palmeiras 1 +17.6
-0.6
Flamengo 4 Vitória 0 -12.3
+0.2
Bahia 1 Grêmio 0 +4.6
-0.1
Santos 2 Botafogo 0 -2.6
+0.0
Atlético-MG 1 Coritiba 2 -0.1
Chapecoense 1 Cruzeiro 1 -0.0
If winner is:HomeEmpateAway
Week of 12/6100.0*Serie B100.0*Average seed
Palmeiras vs Atlético-PRNo+4.7+27.8
+0.4+0.0-0.4
Vitória vs Santos+32.3-18.4-18.4
-0.4+0.2+0.2
Coritiba vs Bahia-8.3-8.4+14.7
+0.1+0.1-0.2

What If

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

100100100100100100100100100100100100100100100100100100100100
If finish:ChanceChance will finish season at seed
TPW-L-Ewins titleLibertadores1234567891011121314151617181920Serie BCount
421-0-0NoNo100No5,117,749
400-0-1NoNo643636.2%3,903,657
390-1-0NoNo41461359.35,118,914
Total:NoNo6927531.5%14,140,320
Points
Chance Will Win Championship