cumulative sum

[Lebron45]

Hello I would like to obtain this result

I want to make a cumulative sum each in relation to my previous value, my base value is that of B

index	A	B
1	10	15
2	20	=15+20=35
3	30	=35+30=65
4	40	=65+40=105

Result:

Index	A	B
1	10	15
2	20	35
3	30	65
4	40	105

earlier doesn't work
B =

IF (

    test[Index] = 1, 

    test[B]

    CALCULATE(

        SUMX(

            FILTER(

                test,

               test[Index] <= EARLIER(test[Index])  

            ),

            test[B]  

        )

    )

)
thank you for your feedback

[v-rzhou-msft · Accepted solution]

Hi @Lebron45 ,

powerbidev123's reply could return the result you want. However if A1 is not 10, it will not work. I don't suggest you to use EARLIER() function, it may cause bad performance if you have large size of data.

You can also try my code to create a calculated column.

B =
VAR _B1 = 15
VAR _CurrentIndex = 'Table'[index]
RETURN
    IF (
        'Table'[index] = 1,
        _B1,
        _B1
            + CALCULATE (
                SUM ( 'Table'[A] ),
                FILTER ( 'Table', 'Table'[index] > 1 && 'Table'[index] <= _CurrentIndex )
            )
    )

Result is as below.

Best Regards,
Rico Zhou

If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

[powerbidev123]

Hi @Lebron45 , Let me know if this helps

B =

5 + SUMX(

    FILTER(

        'Table (3)',

        'Table (3)'[Index] <= EARLIER('Table (3)'[Index])

    ),

    'Table (3)'[A]

)

[bhanu_gautam]

@Lebron45 , Try using 

Cumulative B =
CALCULATE(
SUM(test[A]),
FILTER(
ALL(test),
test[Index] <= MAX(test[Index])
)
) + MIN(test[B])

[Lebron45]

[bhanu_gautam]

@Lebron45 , Try using

B =
IF (
test[Index] = 1,
test[B],
test[A] +
CALCULATE(
MAX(test[B]),
FILTER(
test,
test[Index] = EARLIER(test[Index]) - 1
)
)
)

[Lebron45]

@bhanu_gautam I already tried, but it doesn't work, "earlier" shows me an error

[Lebron45]

hi @bhanu_gautam thank you for your feedback, but I would like to fill my column B from the second and each time by making my value from the current line of my column A + my last value from the previous line of column B