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
Chapecoense 2 Botafogo 0 +6.6
-0.5
Figueirense 2 Vitória 0 -1.7
+0.1
Bahia 1 Atlético-PR 2 -0.6
+0.2
Coritiba 2 Palmeiras 0 +0.5
Flamengo 1 Criciúma 1 +0.0
Week of 11/29100.0*Serie B100.0*Average seed
Santos 2 Botafogo 0 Yes
-0.5
Internacional 3 Palmeiras 1 -0.9
Bahia 1 Grêmio 0 +0.7
-0.3
Flamengo 4 Vitória 0 -0.5
Criciúma 2 Sport Recife 2 +0.1
If winner is:HomeEmpateAway
Week of 12/6100.0*Serie B100.0*Average seed
Corinthians vs Criciúma+0.2+0.2-0.4
Botafogo vs Atlético-MG+0.2-0.1-0.1

What If

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

100100100100100100100100100100100100100100100100100100100100
If finish:ChanceChance will finish season at seed
TPW-L-Ewins titleLibertadores1234567891011121314151617181920Serie BCount
361-0-0NoNo100Yes5,116,830
340-0-1NoNo6436Yes3,904,734
330-1-0NoNo6436Yes5,118,756
Total:NoNo7723Yes14,140,320
Points
Chance Will Win Championship