DAX give different outputs when I expect the same

[KristinG]

Hi! I need som help here 

Value from selected date = 

CALCULATE(

        SUM('Table1'[AMOUNT]),

        ALL('Calendar')

        'Calendar'[DateKey] > MAX('Calendar'[DateKey]))

Value from selected date in prev year = 

VAR CurrentMaxDate = MAX('Calendar'[DateKey])

VAR StartDate = EOMONTH(CurrentMaxDate, -12)

RETURN

CALCULATE(

    SUM(Table1[AMOUNT]),

    ALL('Calendar'),

    'Calendar'[DateKey] > Startdate)

The measures shoud give the exact same output if I enter May 2024 in the first and may 2025 in the last - but there is a sliight difference. 

Value from selected date

Value from selected date in prev year

 Help me understand why there is a difference! 

[v-venuppu]

Hi @KristinG ,

Thank you for reaching out to Microsoft Fabric Community.

Thank you @FBergamaschi for the prompt response.

I have created PBIX file using sample data, you can implement it using your data.Please go through the attached PBIX file for your reference.

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

Thank you.

[FBergamaschi]

Hi,

EOMONTH expectes a date as first input. I do not know what data type is your datekey column.

I tried this for the second measure

VAR CurrentMaxDate = MAX('Calendar'[Date])

VAR StartDate = EOMONTH(CurrentMaxDate, -12)

RETURN 

CALCULATE(

    SUM(Sales[SalesAmount]),

    ALL('Calendar'),

    'Calendar'[Date] > Startdate
)

and it works perfectly, but I used a date column of date format. So either you use a column like that or you convert the datekey into a date with the DATE DAX Function in combination with LEFT, MID, RIGHT

If this helped please mark this as a solution and give kudos

Thanks

Best