topic Re: Need DAX to calculate total based on prior computed total per category in DAX Commands and Tips

Need DAX to calculate total based on prior computed total per category

TYL001 — Fri, 17 May 2024 14:43:13 GMT

Hi -

I have below data in Table View and need a Dax formula to compute a column with the total based on prior week's computed number (prior total * factor) for each category:

Category	Date	factor	Total	calculation
A	01/01/24	-	100
A	01/08/24	1.01682	101.68	(100*1.01682)
A	01/15/24	1.01734	103.45	(101.68*1.01734)
A	01/22/24	1.01939	105.45	(103.45*1.01939)
A	01/29/24	1.01854	107.41	(105.45*1.01854)
B	01/01/24	1.01792	50
B	01/08/24	1.01612	50.81
B	01/15/24	1.01332	51.48
B	01/22/24	1.01134	52.07
B	01/29/24	1.01166	52.67

Re: Need DAX to calculate total based on prior computed total per category

lbendlin — Fri, 17 May 2024 01:28:33 GMT

The only sure way to do this is via List.Accumulate in Power Query. You might be able to fudge it in DAX via PRODUCTX.

Please provide sample data that covers your issue or question completely, in a usable format (not as a screenshot).

Do not include sensitive information or anything not related to the issue or question.

If you are unsure how to upload data please refer to https://community.fabric.microsoft.com/t5/Community-Blog/How-to-provide-sample-data-in-the-Power-BI-Forum/ba-p/963216

Please show the expected outcome based on the sample data you provided.

Want faster answers? https://community.fabric.microsoft.com/t5/Desktop/How-to-Get-Your-Question-Answered-Quickly/m-p/1447523

Re: Need DAX to calculate total based on prior computed total per category

TYL001 — Fri, 17 May 2024 15:38:33 GMT

The code I've tried and failed is below:

CALCULATION = VAR _MINVALUE = DATA[Total] *CALCULATE( SUM(DATA[factor]), FILTER(DATA,DATA[Date]=MIN('DATA'[Date]])&&DATA[Category]=DATA[Category]) ) RETURN IF( DATA[Date]=MIN('DATA'[Date]])&&DATA[Category]=DATA[Category], _MINVALUE, CALCULATE( PRODUCT(DATA[factor]), FILTER(DATA,DATA[Date]<=EARLIER(DATA[Date])&&DATA[Category]=DATA[Category]) )*DATA[factor] )

Re: Need DAX to calculate total based on prior computed total per category

lbendlin — Sun, 19 May 2024 17:37:50 GMT

second request: Please provide sample data that covers your issue or question completely, in a usable format (not as a screenshot).

Do not include sensitive information or anything not related to the issue or question.

If you are unsure how to upload data please refer to https://community.fabric.microsoft.com/t5/Community-Blog/How-to-provide-sample-data-in-the-Power-BI-Forum/ba-p/963216

Please show the expected outcome based on the sample data you provided.

Want faster answers? https://community.fabric.microsoft.com/t5/Desktop/How-to-Get-Your-Question-Answered-Quickly/m-p/1447523