Calculate Difference Between 2 Values Same Column - Based on Date Filters

[powerbiuser711]

Hi all,

Relatively new Power BI user here.  I have one column that has account $ values and another column that has dates.  When I bring the data into a matrix table I can filter the columns by particular dates and have rows by sales rep, but now I would like to calculate the difference in $ amounts and calculate the % difference between any 2 dates that I select.  I know how to do this in Excel, but am completely unsure how to approach this in Power BI.

For example,

            03/26/20           04/02/20           Difference         % Difference

John    $1,987,123        $2,345,961               ?                    ?

Steve   $3,987,123         $5,345,961              ?                    ?

Thanks for your help!

[amitchandak · Accepted solution]

@powerbiuser711 

Assumed you have joined with a date dimension and want to slicer min and max date. For static change the variable(Var) values

difference =
var _max = maxx('Date','Date'[Date])
var _min = Minx('Date','Date'[Date])

return
CALCULATE(SUM(Table[values ]), FILTER(all('Date'), 'Date'[Date] =_max)) -CALCULATE(SUM(Table[values ]), FILTER(all('Date'), 'Date'[Date] =_min))



difference =
var _max = maxx('Date','Date'[Date])
var _min = Minx('Date','Date'[Date])

return
divide(SUM(Table[values ]), FILTER(all('Date'), 'Date'[Date] =_max)) ,CALCULATE(SUM(Table[values ]), FILTER(all('Date'), 'Date'[Date] =_min))) -1

In case you need two slicer, refer to my blog :https://community.powerbi.com/t5/Community-Blog/Comparing-Data-Across-Date-Ranges/ba-p/823601

[Ashish_Mathur]

Hi,

Please clarify/share the following:

1. Will you always only select 2 dates?
2. Will the 2 selected dates always be continuous?
3. Share data in format that can be pasted in MS Excel.

[Greg_Deckler]

Please see this post regarding How to Get Your Question Answered Quickly: https://community.powerbi.com/t5/Community-Blog/How-to-Get-Your-Question-Answered-Quickly/ba-p/38490