Change the totals on a table with percentage

[Joseantonio]

Hi, I want to change the calculation of totals in this table. In this example, as you can see we have a 60% on the first column, because it calculated it as: 39/(39+26)= 60%. What I need it to show is this: (0 + 100 + 44,7)/3=48,2%

Please, I appreciate your help to get the correct percentage on the Total's row.

Best regards,
Jose