DAX for YoY rate calculation

[mclaur_and_22]

Hi everybody, 

I currently have a table where I want to see the YoY growth rate for different locations. The date I have been using is not continuous or has an specific pattern, so when I tried doing YoY calculation I always received the following error: "Function DATEADD expects a contiguous selection when the date column is not unique, has gaps...". Is there perhaps a way to calculate YoY rate for no continous dates?? 

The table I'm working with looks like this, where Nod is a location and the amount per year describes the sales:

What I would like to have is the percent difference table calculation that you can find in Tableau: 

The measures I used were:

YOY diff = 
VAR previousDateWithPrice =
    CALCULATE (
        MAX ( 'capa'[Dates]),
        FILTER ( ALL ( 'capa' ), 'capa'[Sales] > 0 && 'capa'[Dates] < MAX ( 'capa'[Dates] ) )
    )
VAR previousPrice =
    CALCULATE (
        SUM ('capa'[Dates] ),
        FILTER ( ALL ( 'capa' ), 'capa'[Dates] = previousDateWithPrice )
    )
RETURN
    DIVIDE ( SUM ( 'capa'[Sales] ) - previousPrice, previousPrice )

Thank you in advance!! 

[v-yanjiang-msft · Accepted solution]

Hi @mclaur_and_22 ,

According to your description, if you just want to show the annual growth rate, here's my solution.

This is my sample data.

I modify your formula like this:

YOY diff =
VAR previousDateWithPrice =
    CALCULATE (
        MAX ( 'capa'[Dates].[Year] ),
        FILTER (
            ALL ( 'capa' ),
            'capa'[Sales] > 0
                && 'capa'[Dates].[Year] < MAX ( 'capa'[Dates].[Year] )
        )
    )
VAR previousPrice =
    CALCULATE (
        SUM ( 'capa'[Sales] ),
        FILTER (
            ALL ( 'capa' ),
            'capa'[Nod] = MAX ( 'capa'[Nod] )
                && 'capa'[Dates].[Year] = previousDateWithPrice
        )
    )
RETURN
    DIVIDE ( SUM ( 'capa'[Sales] ) - previousPrice, previousPrice )

Get the correct result.

I attach my sample below for reference.

Best Regards,
Community Support Team _ kalyj

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