E5-2 Determining Cost Behavior and Calculating Expected Cost Morning Dove Company manufactures one model of birdbath, which is very popular. Morning Dove sells all units it produces each month. The relevant range is 0 to 1,500 units, and monthly production costs for the production of 500 units follow. Morning Dove's utilities and maintenance costs are mixed with the fixed components shown in parentheses. 5-1 Production Costs Total Cost $1,500 7,500 650 3,000 480 800 Direct materials : Direct labor Utilities ($100 fixed) Supervisor's salary Maintenance ($280 fixed) Depreciation