Required information [The following information applies to the questions displayed below.] 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 1,900 units, and monthly production costs for the production of 1,400 units follow. Morning Dove's utilities and maintenance costs are mixed with the fixed components shown in parentheses. Production Costs Direct materials Direct labor Utilities ($120 fixed) Supervisor's salary Total Cost $1,700 7,700 610 3,300 Maintenance ($350 fixed) Depreciation 460 700 Suppose it sells each birdbath for $28. Required: 1. Calculate the unit contribution margin and contribution margin ratio for each birdbath sold. 2. Complete the contribution margin income statement assuming that Morning Dove produces and sells 1,600 units.