The options are:
a. Make the product because the current factory overhead is less than $130,000.
b. Make the product because the cost of direct material plus direct labor of manufacturing is less than $130,000.
c. Make the product because factory overhead is a sunk cost.
d. Buy the product because the total fixed and variable manufacturing costs are greater than $130,000.
e. Buy the product because the total incremental costs of manufacturing are greater than $130,000.
Answer: E
Explanation:
Incremental cost refers to the cost incurred for producing an additional unit of commodity. In this case the incremental cost equals $147,000(62,000+47,000+38,000). Since this is above the what the outside supplier is offering, it makes no sense to produce internally. The fixed cost of 52,000 representing factory overhead is sunk cost and will be incurred anyway even if production is not possible.