如何计算 Power BI 中的累积总和

Question

I know how to do cumulative sum if dataset has Dates, But I am struggling to do same if I do not have dates in my dataset.

Below is the data, I want CUM Sales

Answer 1

I've selected New quick measure -> Totals -> Running total and creates this:

sales running total in part = 
CALCULATE(
    SUM('Query1'[sales]);
    FILTER(
        ALLSELECTED('Query1'[part]);
        ISONORAFTER('Query1'[part]; MAX('Query1'[part]); DESC)
    )
)

Returns:

Answer 2

You can also create own measure to calculate cumulative sum.

Select New Measure from the ribbon and write the following expression

Cumm Sales = 
        VAR Current_Part = MAX(Test[Part])
        RETURN
        CALCULATE(
                  SUM(Test[Sales]), 
                  Test[Part]<=Current_Part, 
                  ALL(Test[Part])
                 )

Output: