Creating Arrows to trend values over a certain period of time

[Anonymous]

Good Morning. So i have a PBI dashboard I created (very amature) and I need some help. 

I need to show wheather the value is up or down from the previous month. I know how to add the arrows with conditional formatting, the issue I'm running into is the calculation. I used a previous dashboard as a guide, but the formula to calculate the difference Month over month is not right. Does anyone have the syntax or guidence for how to write this so it work. Right now i currently have a measure created :

"

%_Count_Mom_Var = IF(CALCULATE(SUM('Carc_Rarc_Historical'[Patnum]),ALL(Dates[Date_Id]),FILTER(ALL(Dates),Dates[Date_Rank]=SELECTEDVALUE(Dates[Date_Rank])-1))=0,"", (CALCULATE(SUM('Carc_Rarc_Historical'[Patnum]))-CALCULATE(SUM('Carc_Rarc_Historical'[Patnum]),ALL(Dates[Date_Id]),FILTER(ALL(Dates),Dates[Date_Rank]=SELECTEDVALUE(Dates[Date_Rank])-1)))/CALCULATE(SUM('Carc_Rarc_Historical'[Patnum]),ALL(Dates[Date_Id]),FILTER(ALL(Dates),Dates[Date_Rank]=SELECTEDVALUE(Dates[Date_Rank])-1)))" 

and it is calculating zero for every field, so i know its wrong. I just don't know how to fix it. 

or if there is an easier way to go about this, I'd appreciate the help

[v-zhangti · Accepted solution]

Hi, @Anonymous 

You can try the following methods.

%_Count_Mom_Var = 
IF (
    CALCULATE ( SUM ( 'Carc_Rarc_Historical'[Patnum] ),
        FILTER ( ALL ( Dates ),
            Dates[Date_Rank] = SELECTEDVALUE ( Dates[Date_Rank] ) - 1
        )
    ) = 0,
    "",
    CALCULATE ( SUM ( 'Carc_Rarc_Historical'[Patnum] )
            - CALCULATE ( SUM ( 'Carc_Rarc_Historical'[Patnum] ),
                FILTER ( ALL ( Dates ),
                    Dates[Date_Rank] = SELECTEDVALUE ( Dates[Date_Rank] ) - 1
                )
            )
    )
        / CALCULATE ( SUM ( 'Carc_Rarc_Historical'[Patnum] ),
            FILTER ( ALL ( Dates ),
                Dates[Date_Rank] = SELECTEDVALUE ( Dates[Date_Rank] ) - 1
            )
        )
)

Is this the result you expect?

Best Regards,

Community Support Team _Charlotte

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