Duck Company manufactures a part for use in its production of hats. When 10,000 items are produced, the costs per unit are:
Direct materials $0.60
Direct manufacturing labor 3.00
Variable manufacturing overhead 1.20
Fixed manufacturing overhead 1.60
Total $6.40
Nadine Company has offered to sell to Duck Company 10,000 units of the part for $6.00 per unit. The plant facilities could be used to manufacture another item at a savings of $9,000 if Duck accepts the offer. In addition, $1.00 per unit of fixed manufacturing overhead on the original item would be eliminated.
Required:
a. What is the relevant per unit cost for the original part?
b. Which alternative is best for Duck Company? By how much?