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Lanabanana's avatar
Lanabanana
Regular Visitor
7 years ago
Solved

Calculating month-over-month while excluding blanks

Hi everyone,

I'm looking to exclude blank cells from a measure I've created.
I've got a formula where I'm calculating the month over month over a 15 year period for 27 products.
However, some of my products are introduced in the middle of the 15 year period. When I put them all in a visual, the products that start in the middle show -100% for all of the previous months.
The visual calculates the bottom N products and it always takes these products with the -100%
I've tried doing a simple filter that excludes the -100% but then when I filter for years that are prior to the middle of the period, the visual shows as empty.

Here are my measures:
PREV_MONTH = CALCULATE(SUM('Product '[VALUE]),DATEADD('Product'[Reference Period],-1,MONTH))

 Month over month = CALCULATE((DIVIDE(SUM('Product'[VALUE]),[PREV_MONTH])-1))


How do I insert a bit to exclude the calculating of blank values?

Thank you!
  • Hello Lanabanana 

    Give this a try

    Month over month =
    VAR CurrMonth =
        SUM ( 'Product'[VALUE] )
    RETURN
        IF ( NOT ISBLANK ( CurrMonth ), DIVIDE ( CurrMonth, [PREV_MONTH] ) - 1 )

3 Replies

  • Hello Lanabanana 

    Give this a try

    Month over month =
    VAR CurrMonth =
        SUM ( 'Product'[VALUE] )
    RETURN
        IF ( NOT ISBLANK ( CurrMonth ), DIVIDE ( CurrMonth, [PREV_MONTH] ) - 1 )
    • Lanabanana's avatar
      Lanabanana
      Regular Visitor
      Hey ,

      This formula has worked for the most part.
      But when I look at the first month that the product is introduced, it still shows -100% and I can't include my visual with the largest decreases for that month.
      Is there a workaround to this?


      EDIT: I replaced Currmonth with [PREV_MONTH] in the brackets after NOT ISBLANK and no more -100% for the first month. All fixed!

      Thanks!