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

[TYL001]

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

[TYL001]

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]
        )

[lbendlin]

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.

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[lbendlin]

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-...

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/1447...