Forum Discussion
Month Over Month % Change Formula
Hello,
I'm new to power bi and need help with a formula for percent change MOM, please. I would like the percent change as a percentage, but below is the formula of what I want. I also included a table of what the data look like to help. Can someone help, please
Total current month clicks - total previous month clicks / total previous month * 100 / 1
Hi lparks ，
According to your description, here's my solution.
1.Create a calculated column to calculate the sum total clicks for each month.
SUM Total Clicks = SUMX ( FILTER ( 'Table', 'Table'[Month] = EARLIER ( 'Table'[Month] ) ), 'Table'[Total Clicks] )2.Create a measure.
SUM Total Clicks MOM% = VAR _Previous = MAXX ( FILTER ( ALL ( 'Table' ), 'Table'[Month] = MAX ( 'Table'[Month] ) - 1 ), 'Table'[SUM Total Clicks] ) VAR _DIFF = MAX ( 'Table'[SUM Total Clicks] ) - _Previous RETURN DIVIDE ( _DIFF, _Previous )3.Get the expected result, as your snapshot shows part of the data, I get a great value.
I attach my sample below for reference.
Best Regards,
Community Support Team _ kalyjIf this post helps, then please consider Accept it as the solution to help the other members find it more quickly.
4 Replies
lparks , You can create this month vs last month measure using date table
MTD Sales = CALCULATE(SUM(Table[Total click]),DATESMTD('Date'[Date]))
last MTD Sales = CALCULATE(SUM(Table[Total click]),DATESMTD(dateadd('Date'[Date],-1,MONTH)))last month Sales = CALCULATE(SUM(Table[Total click]),previousmonth('Date'[Date]))
next month Sales = CALCULATE(SUM(Table[Total click]),nextmonth('Date'[Date]))To get the best of the time intelligence function. Make sure you have a date calendar and it has been marked as the date in model view. Also, join it with the date column of your fact/s. Refer :radacad sqlbi My Video Series Appreciate your Kudos.
Power BI — Month on Month with or Without Time Intelligence
https://medium.com/@amitchandak.1978/power-bi-mtd-questions-time-intelligence-3-5-64b0b4a4090e
https://www.youtube.com/watch?v=6LUBbvcxtKAHi amitchandak thank you so much. Do I need to put all of the info in one formula?
Hi lparks ，
According to your description, here's my solution.
1.Create a calculated column to calculate the sum total clicks for each month.
SUM Total Clicks = SUMX ( FILTER ( 'Table', 'Table'[Month] = EARLIER ( 'Table'[Month] ) ), 'Table'[Total Clicks] )2.Create a measure.
SUM Total Clicks MOM% = VAR _Previous = MAXX ( FILTER ( ALL ( 'Table' ), 'Table'[Month] = MAX ( 'Table'[Month] ) - 1 ), 'Table'[SUM Total Clicks] ) VAR _DIFF = MAX ( 'Table'[SUM Total Clicks] ) - _Previous RETURN DIVIDE ( _DIFF, _Previous )3.Get the expected result, as your snapshot shows part of the data, I get a great value.
I attach my sample below for reference.
Best Regards,
Community Support Team _ kalyjIf this post helps, then please consider Accept it as the solution to help the other members find it more quickly.
Adding to the accepted solution worth noting one limitation of the MAXX(FILTER(...)) approach: it works when Month is stored as an integer (1, 2, 3...) but breaks at year boundaries (December vs January) because MAX(Month) - 1 for January returns 0, not December of the previous year.
For a more robust MoM % that handles year boundaries correctly, use a proper date table with DATEADD:
MoM % Change = VAR _curr = [Total Clicks] VAR _prev = CALCULATE( [Total Clicks], DATEADD('Date'[Date], -1, MONTH) ) RETURN IF( ISBLANK(_prev), BLANK(), DIVIDE(_curr - _prev, ABS(_prev)) )Format the measure as Percentage in the column formatting panel no need to multiply by 100.
For anyone who needs MoM % change displayed directly in a published Power BI report without writing or maintaining DAX measures Flexa Tables on AppSource adds MoM, YoY, DoD, and YTD variance as built-in columns that Finance or Marketing users can toggle themselves after publishing. No Desktop access needed.
https://marketplace.microsoft.com/en-us/product/devspearllc1670524393721.flexa_tables?tab=Overview
