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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
Helper II
CALCULATE ( [Sales Amount], PREVIOUSMONTH ( 'Date'[Date] ) )
Post Prodigy

Is it one month sales?

Helper II

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 )
Post Prodigy

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

Helper II

Post Prodigy

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

Helper II
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 )
Post Prodigy

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

Helper II

Do you have separate Date table?

Post Prodigy

Yes

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