How are these numbers calculated?

Big Games

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

Week of 11/10100.0*Serie C100.0*Average seed
Boa Esporte 4 Santa Cruz 2 +2.5
-0.3
Guarani 2 CRB 1 +0.6
Parana 2 Luverdense 0 -0.6
Paysandu 2 Brasil de Pelotas 3 +0.1
Figueirense 1 America-MG 2 -0.1
Nautico 1 Londrina 2 +0.1
Brasil de Pelotas 3 ABC 0 +0.1
Santa Cruz 0 Parana 0 -0.1
ABC 3 Criciuma 1 -0.1
Criciuma 0 Nautico 0 +0.1
Week of 11/17100.0*Serie C100.0*Average seed
Paysandu 4 Santa Cruz 2 -0.4
ABC 2 Oeste 0 -0.2
Nautico 1 Vila Nova 2 +0.2
If winner is:HomeEmpateAway
Week of 11/25100.0*Serie C100.0*Average seed
Santa Cruz vs Juventude+0.5-0.1-0.5
Ceara vs ABC+0.3+0.1-0.3
Luverdense vs Nautico+0.2+0.2-0.4

What If

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

100100100100100100100100100100100100100100100100100100100100
If finish:ChanceChance will finish season at seed
TPW-L-Ewins titleSerie A1234567891011121314151617181920Serie CCount
371-0-0NoNo6238Yes6,355,239
350-0-1NoNo245324Yes4,004,994
340-1-0NoNo6238Yes6,352,887
Total:NoNo295120Yes16,713,120
Points
Chance Will Win Championship