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
Fluminense 3 Avaí 1 +17.6
-0.5
Coritiba 1 Santos 0 +10.2
-0.2
Joinville 1 Vasco da Gama 2 +3.3
-0.1
Figueirense 0 Chapecoense 0 -1.3
+0.1
Atlético-MG 2 Goiás 2 -1.2
+0.0
Week of 11/28100.0*Serie B100.0*Average seed
Avaí 1 Ponte Preta 0 -29.7
+0.9
Palmeiras 0 Coritiba 2 +9.6
-0.3
São Paulo 3 Figueirense 2 -9.0
+0.2
Vasco da Gama 1 Santos 0 +6.8
-0.1
Chapecoense 1 Goiás 3 +4.7
-0.1
If winner is:HomeEmpateAway
Week of 12/6100.0*Serie B100.0*Average seed
Corinthians vs Avaí+32.4+17.8No
-0.8-0.4+1.0
Coritiba vs Vasco da Gama-11.2-11.3+18.4
+0.0+0.4-0.2
Figueirense vs Fluminense+18.4-11.3-11.2
-0.4+0.2+0.2
Goiás vs São Paulo+9.1-5.5-5.6
-0.2+0.1+0.1

What If

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

100100100100100100100100100100100100100100100100100100100100
If finish:ChanceChance will finish season at seed
TPW-L-Ewins titleLibertadores1234567891011121314151617181920Serie BCount
441-0-0NoNo6238No5,361,644
420-0-1NoNo39471461.4%3,419,296
410-1-0NoNo244427576.05,359,380
Total:NoNo24332814243.7%14,140,320
Points
Chance Will Win Championship