Question 12 of 13 < > Numbers of cars detailed Revenue 2,080 $468,000 Less operating expenses: Supplies (polish, wax, etc.) $5,824 Salaries of detailers 104,000 Water and other variable costs 12,480 Supervisor's salary 65,000 Rent 36,000 Depreciation 5,000 Other fixed costs 1,050 229,354 Income before taxes $238,646 -/15 Quincy Davis, the owner of Sterling, is considering extending the workweek through Saturd takes this action, he'll hire a part-time employee for $300 per day to act as the Saturday man the supervisor still can have Saturday off. Quincy estimates that his company will detail an additional 10 cars per Saturday, 52 weeks per year. (a) Calculate the annual incremental revenue associated with being open on Saturday. Annual incremental revenue