Incorrect Previous month value calculation

Hi Uzi2019 ,

Did you create a relationship between the two tables?

Best regards,
Lionel Chen

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

Hi Syndicate_Admin ,

I create the following sample data, and then create a measure.

Ventas anteriores = 
var MonthEnd = 
    CALCULATE(
        SUM('DataTable'[Sales]),
        DATEADD( 'Calendar'[Date], -1, MONTH )
    )
var Month = 
    CALCULATE(
        SUM('DataTable'[Sales]),
        FILTER(
            ALL('DataTable'),
            'DataTable'[Date] <= EDATE( MAX('Calendar'[Date]), -1 )
            &&'DataTable'[Date] >= EDATE( MIN('Calendar'[Date]), -1 )
        )
    )
var Result = 
    IF(
        MAX('Calendar'[Date]) = EOMONTH( MAX('Calendar'[Date]), 0 ), 
        MonthEnd, 
        Month
    )
return Result

If the problem is still not resolved, please provide detailed error information or the expected result you expect. Let me know immediately, looking forward to your reply.

Best Regards,
Winniz

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