subtracion row custom column

Hi  andreaturri27 ,

Here are the steps you can follow：

1. In Power query. Add Column – Index Column – From 1.

2. Create calculated column.

min =
var _min=MINX(FILTER(ALL('Table'),'Table'[id_progetto]=EARLIER('Table'[id_progetto])),[Index])
return
IF(
    'Table'[Index]=_min ,
    [Moltiplicazione],
    BLANK())

Sottazione =
CALCULATE(
    SUM('Table'[min]) - SUM('Table'[h_Prog]),
    FILTER(ALL('Table'),'Table'[id_progetto]=EARLIER('Table'[id_progetto])&& 'Table'[Index]<=EARLIER('Table'[Index])))

3. Result:

Best Regards,

Liu Yang

If this post helps, then please consider Accept it as the solution to help the other members find it more quickly