Hello, i am trying to analyze a percentage of a total with a tabular model, but when i try to put it on a pivot in the right rows to analyze what percentage of a total, i obtain only the same numbers. 

How i can calculate a distinct count filtering to a company level to analyze which company have the highest or lowest percentage of the total.

... i obtain only the same numbers. 

If you get always the same measure values for all dimension member it's ahint that the relations between dimensions / measure groups are missing; so check the relations in your cube design.