The following transactions have been journalized and posted to the proper accounts. March is the first month of business operations.

Mar. 1 The business received $10,000 cash and issued common stock to stockholders.

Mar. 2 Paid the firstmonth's rent of $700.

Mar. 3 Purchased equipment by paying $4,000 cash and executing a note payable for $4,000.

Mar. 4 Purchased office supplies for $600 cash.

Mar. 5 Billed a client for $11,000 of design services completed.

Mar. 6 Received $6,000 on account for the services previously recorded.

What is the ending balance in the Service Revenueaccount?