Percentage within table per row

Anonymous 

Hi, to add a "Percentage of Total" column alongside your Total Activity Status measure, you would need to create a new measure that calculates the proportion of each status relative to the total across all statuses.

% of Total Activity Status = 
DIVIDE(
    [Total Activity Status],
    CALCULATE([Total Activity Status], ALL('Activities'[Activity Status Name]))
)

Also, to validate the DAX measure output, ideally you would need to provide complete underlying data (i.e., all records from the 'Activities' table or a sufficient sample). This would help other users to give you a fully functional Measure. 

Hope this helps:)