Hello, I am having trouble trying get this calculation work in my dashboard.

What I am trying to do is find the difference between two calculated measures after filtering. So, what I did is create two calculations, one a fixed revenue that doesn't change and the other, a projected revenue, which dynamically changes as the parameters/filters change. What I want to do is: as I filter out the dates/change the parameter, I want to calculate the difference between the fixed revenue and projected revenue.

I attached a tableau with fake data, but the same structure as my data.

Thanks in advance for the help.