Web: Setup > Services > Stats
Click 'Stats' on a service to open its drawer. It uses the date range at the top of the page and shows:
Times used
Revenue
Commission paid
Cost of goods, Profit and Margin, when profit is visible to you
Example: A service used 10 times for $2,000 revenue with $200 commission paid. Commission is $200 / $2,000 = 10% of that service's revenue.
See Profit Visibility.