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errepinna's avatar
errepinna
Icon for Helper I rankHelper I
5 years ago
Solved

Sum between specific values

Hello guys, I started to experiment with Power Bi yesterday. Got a lot to learn. Here's my problem:     How do I add a column ∆ in a table from the Query Editor? The screen is from an Excel ...
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  • amitchandak's avatar
    amitchandak
    5 years ago

    errepinna , something like this

     

    new column =
    var _last = maxx(filter(Table, [DATE] < earlier([DATE])),[DATE])
    return
    if(isblank(_last), blank(), [TotalMoney]- maxx(filter(Table, [DATE] =_last ),[TotalMoney]))

errepinna's avatar
errepinna
Icon for Helper I rankHelper I
5 years ago

This works! Only one thing: the first raw displays the original value of [TotalMoney]. Is there a way to make it go to zero? I was thinking about putting a condition on the value of _last but I couldn't make it work.

amitchandak's avatar
amitchandak
Icon for Super User rankSuper User
5 years ago

errepinna , something like this

 

new column =
var _last = maxx(filter(Table, [DATE] < earlier([DATE])),[DATE])
return
if(isblank(_last), blank(), [TotalMoney]- maxx(filter(Table, [DATE] =_last ),[TotalMoney]))