Percent complete by category

Here is a solution.

It gets more complex if you want to apply FILTER() to the formula so that person b will show up and you do not need to show all categories.  If filtering for Complete, person b will not show up.  In the FILTER() case, the Measure is hard coded for Complete.

Here is the measure and a snippet below showing my results using your provided data:

% of Status =
COUNT ( data[Status] ) / CALCULATE (
COUNT ( data[Status] ),
ALLEXCEPT ( data, data[User] )
)

briodan,

You can create a measure using DAX below.

Pecent complete = DIVIDE(CALCULATE(COUNTA(data[Status]),FILTER(data,data[Status]="complete")),COUNTA(data[Status]))+0

For more details, please review attached PBIX file.

Regards,
Lydia