Morning Dove Company manufactures one model of birdbath, which is very popular. Morning Dove sells al units it produces each month. The relevant range is 0-2,500 units, and monthly production costs for the production of 2,100 units follow. Moming Dove's utilities and maintenance costs are mixed with the fixed components shown in parentheses. Production Costs Direct materials Direct labor Utilities ($110 fixed) Supervisor's salary Total cost $3,100 7,100 600 2,900 (S310 fixed)460 Maintenance ($310 fixed 460 800 Depreciation Suppose it sells each birdbath for $22