Tips on how to Calculate the net result of two columns?

[LarsPW]

Hi

I've a table including two columns, one with entry dates and one with exit-dates.

My wish is to calculate theese two, and recvive the net result per month, thus wheter the result is positive  or negative and then display the result in a bar chart, similar to this:

I've tried making a measure where I just subtracted the entry with exit column, but it didnt work well.

Anyone here with a suggestion how solve this? 

Good to know is also that, the two colomuns are connected to two separate calender tables

[djurecicK2 · Accepted solution]

Hi @LarsPW ,

 You can create a calculated column to store the differnce. Something like this:

Difference= DATEDIFF(Tablename[Disaffiliatedate],Tablename[Applicationdate],DAY)

https://learn.microsoft.com/en-us/dax/datediff-function-dax

Please accept as solution if this answers the question- thanks!