month over month change for Rolling 12 months

[Anonymous]

I want to show a visual which return month over month change for last 12 months. Can someone provide the dax code for it

[amitchandak]

@Anonymous , With help from a date tbale used in formula and visual

a measure

Rolling 12 = CALCULATE(sum(Sales[Sales Amount]),DATESINPERIOD('Date'[Date ],MAX(Sales[Sales Date]),-12,MONTH))

Rolling Months Formula: https://youtu.be/GS5O4G81fww

[Anonymous]

Thanks for the reply. I want to calculate month over month change and show it for last 12 months. I want to calculate the change percent in current month value as compared to previous month value and return that change for last 12 months

[v-shex-msft · Accepted solution]

Hi @Anonymous,

Did you mean the expression should apply to the last 12-month ranges based on the latest date and show the month-over-month difference in these ranges?

For your requirement, you can add variables to extract value from the table and use the if statement to check the current date and the last date and skip the calculation in the not match date ranges.

Sample measure:

formula =
VAR currDate =
    MAX ( Table[Date] )
VAR prevDate =
    DATE ( YEAR ( currDate ), MONTH ( currDate ) - 1, DAY ( currDate ) )
VAR cMonth =
    CALCULATE (
        SUM ( Table[Amount] ),
        FILTER (
            ALLSELECTED ( Table ),
            YEAR ( [Date] ) = currDate
                && MONTH ( [Date] ) = MONTH ( currDate )
        )
    )
VAR pMonth =
    CALCULATE (
        SUM ( Table[Amount] ),
        FILTER (
            ALLSELECTED ( Table ),
            YEAR ( [Date] ) = prevDate
                && MONTH ( [Date] ) = MONTH ( prevDate )
        )
    )
VAR _lastDate =
    MAXX ( ALLSELECTED ( Table ), [Date] )
VAR _LYDate =
    DATE ( YEAR ( _lastDate ) - 1, MONTH ( _lastDate ), DAY ( _lastDate ) )
RETURN
    IF (
        currDate >= _LYDate
            && currDate <= _lastDate,
        DIVIDE ( cMonth - pMonth, pMonth )
    )

Regards,
Xiaoxin Sheng