Last year value but without format date

Hi everyone, I am having this issue where I have to calculate the last year value, but I am not working with a format Date, because we are working with weeks.

I have a table like this, called View_BT_Comercial

In my page, I 've this filters wich I want to keep for the calculate of the last year:

So in one of my measures the DAX functions that i use to calculate the actual year and the last are :

ACTUAL : 

Ventas_Totales = SUMX(View_BT_Comercial,View_BT_Comercial[Precio_Unitario]*View_BT_Comercial[Unidades])

LAST YEAR :

ventas_totales_LY = CALCULATE(sumx(View_BT_Comercial,View_BT_Comercial[Precio_Unitario]*View_BT_Comercial[Unidades]),filter(all(View_BT_Comercial),View_BT_Comercial[anioretail] =max(View_BT_Comercial[anioretail_ant]) && View_BT_Comercial[MesRetail] =max(View_BT_Comercial[MesRetail]) && View_BT_Comercial[semanaRetail] <=max(View_BT_Comercial[semanaRetail]) && View_BT_Comercial[Sucursal_ID]<=max(View_BT_Comercial[Sucursal_ID] )))

So, I tried with just the calculated filters, but the equal "=" doesn't wok, then I tried with the function FILTER(ALL( ... like i posted, but when I dont select a month, or week, or sucursal,  it gives a wrong result, because of the "max" function ... so the next that i tried was FILTER(ALLEXCEPT( and put the columns sucursal, month and week, but nothing too .. I tried also with VALUES().

I really dont know what to use ... Like i said before, cause I am not working with a date format, i created a calculated column wich "anioretail-1" so i can get the last year, mainly because I cant use DATEADD.

I need to get the last year value for the same month, week and sucursal, are o aren't filtered values.

Thanks !!!