Wallace Publishing identified the following overhead activities, their respective costs, and their cost drivers to produce the three types of textbooks the company publishes.

Deluxe textbooks are made with the finest-quality paper, six-color printing, and many photographs. Moderate texts are made with three colors and a few photographs spread throughout each chapter. Economy books are printed in black and white and include pictures only in chapter openings.

Required
a. Wallace currently allocates all overhead costs based on machine hours. The company produced the following number of books during the prior year.

Determine the overhead cost per book for each book type.
b. Determine the overhead cost per book, assuming that the volume-based allocation system described in Requirement a is replaced with an activity-based costing system. Round your figures to two decimal points.
c. Explain why the per-unit overhead costs determined in Requirements a and bdiffer.

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Type of Textbook Activity (Cost) Cost Driver Deluxe Moderate Economy Machine maintenance ($180,000) Number of machine hours Setups ($315,000) Packing ($81,000) Photo development ($252,000) Number of pictures 900 15 30 4000 2,000 1,000 300 30 10 1,200 Number of setups Number of cartons 50 Deluxe Moderate Economy 50,000 150,000 200,000