Counts Showing Incorrectly in charts

[marley1978]

I have a measure where I use an expression of

Count ({< [Term] = {'Yes'}, [Term Reason] -= {'Unknown'}>} EmployeeID)

When I use this in a pivot table and group by YearMonth I get a total of 791 records which is correct.

When I use the same expression in a KPI I get 784 records.  Looks like its removing duplicate employeeIDs.  Duplicate records can occur since an employee can be termed more than once in a given period.

I am not sure what is going on since I am using the same master measure in both types of charts.

Any ideas why it would do this?

[zebhashmi]

try =-

instead of -=

[marley1978]

same issue