topic Re: DAX to calculate rolling percentage of change in DAX Commands and Tips

DAX to calculate rolling percentage of change

Don_P — Wed, 26 Jul 2023 17:29:49 GMT

I have created a DAX measure that shows me a rolling total over time:

Service Hours =

SUMX(VALUES(D365),

CALCULATE(

SUM(D365[Hours]),

DATESYTD('Date'[Date])

)

Here is how it looks:

I would like to add a new column that shows the percentage of change between years over time and I have not been able to figure this out.

Any help is greatly appreciated.

Thank you

Don Price

Re: DAX to calculate rolling percentage of change

Anonymous — Fri, 28 Jul 2023 09:06:35 GMT

Hi Don_P ,

You can refer the following links to get it:

Calculating Percentage Change in Power BI - A Guide - Monocroft [0492-9f27-475-7563]

YTD Sales = TOTALYTD(SUM(Sales[Amount]), 'Calendar'[Date]) YTD % Change = DIVIDE ( [YTD Sales] - CALCULATE ( [YTD Sales], DATEADD ( 'Calendar'[Date], -12, MONTH ) ), CALCULATE ( [YTD Sales], DATEADD ( 'Calendar'[Date], -12, MONTH ) ) )

Power BI Year-Over-Year Growth % Calculations [DAX] - YouTube

If the above one can't help you, please provide some raw data in your tables (exclude sensitive data) with Text format and your expected result with backend logic and special examples. It would be helpful to find out the solution. You can refer the following link to share the required info:

How to provide sample data in the Power BI Forum

And It is better if you can share a simplified pbix file. You can refer the following link to upload the file to the community. Thank you.

How to upload PBI in Community

Best Regards

Re: DAX to calculate rolling percentage of change

Don_P — Fri, 04 Aug 2023 11:54:48 GMT

Thank you, everyone,

I believe I have found a different way to achieve this.

I first created a measure to show me this year's number in this manner: Service Hours = CALCULATE(SUM(D365[Hours]),FILTER('Date','Date'[Date]))

I then created a measure to show me the previous year's number: Previous Year Service Hours = CALCULATE(SUM(D365[Hours]),SAMEPERIODLASTYEAR('Date'[Date]))

I then created a measure like this to calculate the percentage of change: Service Hours % of Change = IF(([Service Hours]/[Previus Year Service Hours]-1) = -1,BLANK(),IFERROR(([Service Hours]/[Previus Year Service Hours]-1), BLANK()))