To identify your top performers (therapists or service providers) or most efficient staff members, go to Reports > Employee > Performance (from filter) > Employee Sales Metrics > Specify filter criteria > Refresh.
Export the report and view details in the column called Total to compare employee performance. This column displays the total revenue on all the sales made by the employee in the selected time period. It is the sum of Service, Product, Membership, Packages, and Gift Card revenues. Read: Employee Sales Metrics Report