calculation based on columns of two different sheets

[Anonymous]

Hello PBI community,

I have two different excel sheet loaded. I want to subtract the premium column from two different sheets. I tried making a measre but when i tried to make a visulaization it didnt showed properly.

[Anonymous]

@Anonymous 

So... You have not yet got any answers, right? Have you maybe tried to figure out why?

Here's a hint: https://community.powerbi.com/t5/DAX-Commands-and-Tips/How-to-Get-Your-Question-Answered-Quickly/td-p/1626726

[Anonymous]

why?