Sorry I'm just now getting back to this. It looks like you might be after the value from thirty days ago. Here is the formula I used:
DATEADD(MES_ATUAL[Data de Cadastramento 2],-30,DAY),
Assuming that is what you need, this expression should help. It simply goes back thirty days and executes the [Qtd_Processo_M0] measure. You can change the second parameter of the DATEADD expression to go back a certain number of days. You don't have date values for every day of the month in the MES_ATUAL table, so some rows will be blank. Here is what it looks like in the table visual:
HERE is a link to your sample file with the added expression.