How are these numbers calculated?

Big Games

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

Week of 11/18100.0*Serie C100.0*Average seed
Oeste 0 Joinville 2 -21.8
+0.5
Bahia 3 Bragantino 2 -0.6
+0.0
If winner is:HomeEmpateAway
Week of 11/25100.0*Serie C100.0*Average seed
Joinville vs Vila Nova-41.4-17.4Yes
+0.4+0.2-0.4
Nautico vs Oeste-18.3+5.7Yes
+0.2-0.1-0.4

What If

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

100100100100100100100100100100100100100100100100100100100100
If finish:ChanceChance will finish season at seed
TPW-L-Ewins titleSerie A1234567891011121314151617181920Serie CCount
401-0-0NoNo772323.5%13,074,985
380-0-1NoNo534747.510,638,121
370-1-0NoNo100Yes20,637,454
Total:NoNo356564.8%44,350,560
Points
Chance Will Win Championship