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 1,700 units, and monthly production costs for the production of 1,300 units follow. Morning Doves utilities and maintenance costs are mixed with the fixed components shown in parentheses. Production Costs Total Cost Direct materials $ 2,700 Direct labor 6,700 Utilities ($140 fixed) 620 Supervisors salary 3,000 Maintenance ($350 fixed) 490 Depreciation 800 Suppose it sells each birdbath for $20. Required: Calculate the unit contribution margin and contribution margin ratio for each birdbath sold. Complete the contribution margin income statement assuming that Morning Dove produces and sells 1,500 units