Swiss Furniture Company manufactures bookshelves and uses an activity-based costing system to allocate all manufacturing conversion costs. The following information is provided for the month of May: Activity Estimated Indirect Activity Costs Allocation Base Estimated Quantity of Allocation Base
Materials handling $6,300 Number of parts 9,100 parts
Assembling $14,000 Number of parts 9,100 parts
Packaging $2,680 Number of bookshelves 910 bookshelves

Required:
Each bookshelf consists of 10 parts. The direct materials cost per bookshelf is $32.What is the total manufacturing cost per bookshelf?

Total unitary manufacturing cost= $57.25

Explanation:

First, we need to calculate the activities rates:

Predetermined manufacturing overhead rate= total estimated overhead costs for the period/ total amount of allocation base

Materials handling= 6,300/9,100= $0.69 per part

Assembling= 14,000/9,100= $1.54 per part

Packaging= 2,680/910= $2.95 per bookshelve

Each bookshelf consists of 10 parts. The direct materials cost per bookshelf is $32.

Now, we can allocate conversion costs to each unit:

Allocated MOH= Estimated manufacturing overhead rate* Actual amount of allocation base

Materials handling= 0.69*10= $6.9

Assembling= 1.54*10= $15.4

Packaging= 2.95*1 = $2.95

Total allocated costs per unit= $25.25

Finally, the total unitary manufacturing cost:

Total unitary manufacturing cost= 32 + 25.25

Total unitary manufacturing cost= $57.25

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