Skip to main content
cancel
Showing results for 
Search instead for 
Did you mean: 

The Power BI DataViz World Championships are on! With four chances to enter, you could win a spot in the LIVE Grand Finale in Las Vegas. Show off your skills.

Reply
Analitika
Post Prodigy
Post Prodigy

One month sales (30 days back) Power BI

Hello,

 

How to calculates one month sales (30 days back) in Power BI?

10 REPLIES 10
piotr_gor
Helper II
Helper II

CALCULATE ( [Sales Amount], PREVIOUSMONTH ( 'Date'[Date] ) )

Is it one month sales?

It's previous month sales. 

If you want to calculate last 30 days you could use (thanks to this  article) :

30 Days Sales = 
    VAR NumOfDays = 30

    VAR LastCurrentDate =
        MAX ( 'Date'[Date] )

    VAR Period =
        DATESINPERIOD ( 'Date'[Date], LastCurrentDate, - NumOfDays, DAY )

    VAR Result =
        CALCULATE (
            SUMX(
                VALUES( Date[Date] ),
                [Sales Amount]
            ),
            Period
        )

    VAR FirstDateInPeriod = MINX ( Period, 'Date'[Date] )

    VAR LastDateWithSales = MAX ( Sales[OrderData] )

    RETURN
        IF ( FirstDateInPeriod <= LastDateWithSales, Result )

How calculate the change of sales comparing with last month in euros and percentage?

 

Check out your's next topic. I've already answered it. 

How calculate average one month sales (30 days back)?

30 Days Sales = 
    VAR NumOfDays = 30

    VAR LastCurrentDate =
        MAX ( 'Date'[Date] )

    VAR Period =
        DATESINPERIOD ( 'Date'[Date], LastCurrentDate, - NumOfDays, DAY )

    VAR Result =
        CALCULATE (
            AVERAGEX(
                VALUES( Date[Date] ),
                [Sales Amount]
            ),
            Period
        )

    VAR FirstDateInPeriod = MINX ( Period, 'Date'[Date] )

    VAR LastDateWithSales = MAX ( Sales[OrderData] )

    RETURN
        IF ( FirstDateInPeriod <= LastDateWithSales, Result )

The syntax for '[Date]' is incorrect. (DAX( VAR NumOfDays = 30 VAR LastCurrentDate = MAX ( 'Date'[Date] ) VAR Period = DATESINPERIOD ( 'Date'[Date], LastCurrentDate, - NumOfDays, DAY ) VAR Result = CALCULATE ( AVERAGEX( VALUES( Date[Date] ), [P

Do you have separate Date table? 

Yes

Helpful resources

Announcements
Feb2025 Sticker Challenge

Join our Community Sticker Challenge 2025

If you love stickers, then you will definitely want to check out our Community Sticker Challenge!

Jan NL Carousel

Fabric Community Update - January 2025

Find out what's new and trending in the Fabric community.