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Single Plantwide and Multiple Production Department Factory Overhead Rate Methods and Product Cost Distortion

Eclipse Motor Company manufactures two types of specialty electric motors, a commercial motor and a residential motor, through two production departments, Assembly and Testing. Presently, the company uses a single plantwide factory overhead rate for allocating factory overhead to the two products. However, management is considering using the multiple production department factory overhead rate method. The following factory overhead was budgeted for Eclipse:

Assembly Department $$280,000$

Testing Department $800,000$

Total $$1,080,000$

Direct machine hours were estimated as follows:

Assembly Department $4,000$ hours

Testing Department $5,000$

Total $9,000$ hours

In addition, the direct machine hours $($dmh$)$ used to produce a unit of each product in each department were determined from engineering records, as follows:

Commercial Residential

Assembly Department $2\mathrm{.}0$ dmh $3\mathrm{.}0$ dmh

Testing Department $6\mathrm{.}01\mathrm{.}5$

Total machine hours per unit $8\mathrm{.}0$ dmh $4\mathrm{.}5$ dmh

a$.$ Determine the per$-$unit factory overhead allocated to the commercial and residential motors under the single plantwide factory overhead rate method, using direct machine hours as the allocation base.

Commercial $fill in the blank $1$

per unit

Residential $fill in the blank $2$

per unit

b$.$ Determine the per$-$unit factory overhead allocated to the commercial and residential motors under the multiple production department factory overhead rate method, using direct machine hours as the allocation base for each department.

Commercial $fill in the blank $3$

per unit

Residential $fill in the blank $4$

per unit

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