Previous 12-month trailing measure

[dentonblake]

Using the following measure to calculate the current trailing 12-month sales amount:

Cumulative_Sales = CALCULATE(
    if(
        countrows(values('DATE'[Date])) = 1,
        [TABC_SALES],
        SUMX(
            values('DATE'[Date]),
            [TABC_SALES]
        )
    ),
    DATESINPERIOD(
        'DATE'[Date],
        LASTDATE('DATE'[Date]),
        -12,
        MONTH
    )
)

Trying to calculate the previous trailing 12-month so I can compare the %'age difference between the two periods.  So based on the sales data I have to date would need to compare 12/2016 - 11/2017 (current trailing 12-month period), and 12/2015 - 11/2016 (previous trailing 12-month period)

Thank you!  ~db

[v-ljerr-msft · Accepted solution]

Hi @dentonblake,

Could you try using the formula below to see if it works in your scenario? 

previous trailing 12-month period Cumulative_Sales =
CALCULATE (
    IF (
        COUNTROWS ( VALUES ( 'DATE'[Date] ) ) = 1,
        [TABC_SALES],
        SUMX ( VALUES ( 'DATE'[Date] ), [TABC_SALES] )
    ),
    DATESINPERIOD (
        'DATE'[Date],
        EDATE ( LASTDATE ( 'DATE'[Date] ), -12 ),
        -12,
        MONTH
    )
)

Regards