Measure that sums the final result for each element filtered

Hi everyone,

I am having a doubt:
I created a Measure that works perfectly per each element in my table.
The problem appears when in Power BI, I select more than one element in my filter. The Measures sums the values of the elements I selected and then it makes the calculations. What I need is to calculate the Measure to each element in the filter and then to sum the final results.

Any opinion, Thanks