9-24 Cost Management
Problems
1. Daisy Dairy produces butter and cheese products. The process yields whey, in addition to the butter
and cheese products. Years ago, whey was considered human food, but now the dairy sells it very
cheaply as animal feed to avoid disposal costs. Recently, University of California-Davis researchers
developed a process whereby whey can be used as a main ingredient in a plastic-like film that can be
used to coat foods to keep them fresh.
a. Describe main products and by-products. How are they similar, and how are they different?
b. Under Daisy’s current practices, would whey be considered a main product or a by-product?
Explain.
c. With the new developments for whey, would you expect any changes in your classification in part
(c)? Explain.
d. Describe several uncertainties that might arise when classifying products as main products versus
by-products.
2. Martin, Inc. produces products MP-1 and MP-2 from a joint process costing $2,000 per 1,000 pounds
of input. A 1,000-pound batch produces 300 units of MP-1 and 200 units of MP-2. MP-1 can be
processed further for $150, and MP-2 for $250. Sales prices after further processing are $5 and $7
per unit, respectively.
a. Determine the gross margin for each product, assuming Martin allocates joint costs using the
physical output method.
For parts (b) through (d), assume Martin could buy a higher grade of the input material for $3,000 per
1,000 pounds. The higher grade material would increase MP-1’s separable costs to $400, and MP–2’s
unit selling price would become $15.
b. Would the MP-1 manager want the better quality material to be purchased? Provide
computations to support your answer.
c. Would the MP-2 manager want the better quality material to be purchased? Provide
computations to support your answer.
d. Would the chief executive officer of Martin, Inc. want the better quality material to be purchased?
Provide computations to support your answer.
3. As an accountant for Metals Unlimited, a small mining firm, you are responsible for allocating the
joint costs for the minerals. The firm is using the weight of the material to allocate these costs. Some
of the tailings from the mining process are currently being sold as unprocessed gravel to landscape
material distributors, but the allocated costs are greater than the revenue. Therefore, several managers
would like to quit selling this product.
a. What joint product allocation method is Metals Unlimited using? Why, under this method, are
the joint cost allocations to gravel larger than the revenues?
b. List two market-based methods that could be used to allocate the joint costs. List the one pro and
one con of each method for this organization.
c. Write a brief paragraph to the managers explaining why they should not use any allocated joint
costs in their decisions about whether to keep or drop the gravel product.