Running Total Power Query

[Anonymous]

Hello, Everyone!

I need a dificult solution i hav benn working for two days without solution.

I hav a simple table, with the month and a number.

I must create a Running total of the number column and substract from the running total of this result column.

Is a crazy math but need to be done. In DAX is very easy to do this, but i really need this in Power Query.

I will atach a image of the excel for make more easy to understand of my issue.

The formula in formula bar translated to english will be:

 = ABS ( SUM ( $C$3:C11 ) ; 0 ) - ABS ( SUM ($D$3:D10 ) ; 0 )

in January the formula need to be just the ABS of January (if not it will be a circular expression)

What I tried to do until now;

Create a function to make the running total of the column I need, called fnRunningTotal to run in the two columns

Make a column with the if statment:

if month = "Jan" then Number.Abs([Base Calc]) else fnRunningTotal ( [BASE CALC] ) - fnRunningTotal ( [CONTR],{index}-1)

But without sucess of create the function.

Thanks for all the help!

[tharris]

See if this works for you:

https://www.youtube.com/watch?v=EP4L1FVcSUg

I believe you will need to create 2 different running total columns and then a third calc column for the difference. Have you also tried using Dax on the calc column vs M?

[Anonymous]

I'm just get the running of one column with the query above:

List.Sum(List.Range(#"LastStep"[BASE CALC],
(
    if [Mês]="Jan" then [Index] else
    if [Mês]="Fev" then [Index]-1 else
    if [Mês]="Mar" then [Index]-2 else
    if [Mês]="Abr" then [Index]-3 else
    if [Mês]="Mai" then [Index]-4 else
    if [Mês]="Jun" then [Index]-5 else
    if [Mês]="Jul" then [Index]-6 else
    if [Mês]="Ago" then [Index]-7 else
    if [Mês]="Set" then [Index]-8 else
    if [Mês]="Out" then [Index]-9 else
    if [Mês]="Nov" then [Index]-10 else
    if [Mês]="Dez" then [Index]-11 else
    0),
    (if [Mês]="Jan" then 1 else
    if [Mês]="Fev" then 2 else
    if [Mês]="Mar" then 3 else
    if [Mês]="Abr" then 4 else
    if [Mês]="Mai" then 5 else
    if [Mês]="Jun" then 6 else
    if [Mês]="Jul" then 7 else
    if [Mês]="Ago" then 8 else
    if [Mês]="Set" then 9 else
    if [Mês]="Out" then 10 else
    if [Mês]="Nov" then 11 else
    if [Mês]="Dez" then 12 else 0
)))

Just need to get the second part.

Thanks again

[Anonymous]

Despite the solution that I presented in the last post, it is not even efficient, taking more than 1 hour to run. Would anyone else have a solution?