A local accounting firm has offered to "do all" the billings and collections of a general practitioner. The annual fee will be $12,000. The service will replace the part-time bookkeeper who works for $12 an hour, 10 hours a week. Because outsourcing accounting activities will take place away from the office, the doctor estimates that she will have one additional hour a week to see patients. Normally she sees four patients an hour with an average visit fee of $100. The office is open 50 weeks a year. Since the computer service will maintain all records in its office, the doctor will no longer need to rent storage space for the office files. The storage space rents for $150 a month.

Required: Determine whether or not the doctor should accept the offer to use the computer service.