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 0-2,200 units, and monthly production costs for the production of 1,900 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 ($150 fixed) Supervisor's salary Maintenance ($290 fixed) Total Cost S 1,500 7,100 550 2,800 490 900 Suppose it sells each birdbath for $20. Required 1. Calculate the unit contribution margin and contribution margin ratio for each birdbath sold. (Round Variable cost per unit to 2 decimal places. Enter all amounts as positive values.) Cost per Unit | Unit Contribution Margin per Birdbath | Contribution Margin Ratio =