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
juangomez
Helper I
Helper I

Divide by Constant Currency

Hello

 

I am trying to optimice the following Dax measure:

 

SUMX (
    FILTER(Complete_DATA,Complete_Data[Version] in VALUES('Scenario 1'[Scenario 1])),
    DIVIDE (
        Totales[Gross Sales],
        SUMX(
            FILTER(
                FILTER(FX,FX[Version]=Forex[Selected Currency]),
                FX[Month]=Complete_DATA[Month]),
                FX[EUR to US]
            )
        )
)

 

I have 2 slicers, one to select an scenario (From the Complete_DATA table), and another to select the currency.

The idea is that the [Gross Sales] be divided by the corresponding currency (according to the scenario selected) and month independent of the "Date" as I could need 2020 sales in 2019 Exchange Rates.

 

FX table has the following structure:

DateMonthVersionEUR to US
01/01/2020JanuaryLC$1
01/01/2020JanuaryUSD 20201.02
01/01/2019JanuaryUSD 20191.05


The previous DAX formula works, but is incredibly inefficient as it first goes to each of the Complete_DATA registry, divides the corresponding currency and then summarizes everything. With small data it doesn't matter but right now I have query updates of +3 minutes.

 

I have tried the following with no success as Exchange is not calculating correctly:

 

Gross Sales 1 = 
var Sales = 
    CALCULATE(
    Totales[Gross Sales],
    Complete_Data[Version] in VALUES('Scenario 1'[Scenario 1])
    )

var Exchange = 
    CALCULATE(
    [TRM],
    FX[Version] in VALUES(Forex[Currency]),
    FX[Month] = SELECTEDVALUE(Calendario[Month])
    )

return DIVIDE(Sales,Exchange)

 

Any suggestions?

2 REPLIES 2
juangomez
Helper I
Helper I

I am doing the following:

 

 

Gross Sales 1 = 
var Sales = 
    CALCULATE(
        Totales[Gross Sales],
        Complete_Data[Version] in VALUES('Scenario 1'[Scenario 1])
        )

var Exchange = 
    CALCULATE(
    [TRM],
        FX[Version] in VALUES(Forex[Currency]),
        USERELATIONSHIP(Complete_Data[Month],FX[Month])
    )

return DIVIDE(Sales,Exchange)

 

 

 

But apparently it is not calculating correclty:

 

GS differences Power BI.JPG

 

The right one is the correct calculation with the old & inneficient code. Any suggestions?

 

lbendlin
Super User
Super User

Take your DAX query and analyze its query plan in DAX Studio.  Check the number of produced queries, the FE/SE ratio, and the overall number of records touched.  Then decide on how to change it.

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.