Managerial Accounting 4e Solutions Manual
(15 min.) S8-8
Req. 1
StoreAway production is constrained by the machine hours available for producing the bins. StoreAway needs to
determine its most profitable product mix by considering each size bin’s contribution margin per machine hour:
Less: Variable cost per unit
Contribution margin per unit
Contribution margin per machine hour
Machine hours available………………………………
Number of regular bins per machine hour…………..
Maximum production of regular size bins……………
StoreAway should spend all 2,800 machine hours making regular size bins, resulting in 44,800 regular size bins and 0
machine hours making large size bins.
Req. 3
Given this product mix, StoreAway’s operating income for the period is projected to be:
Number of regular size bins……………………
Contribution margin per regular size bin………
Total contribution margin………………………
Less: Fixed expenses……………………………
Operating income…………………………………
*Total contribution margin can also be found by multiplying
2,800 hours by the regular size bin contribution margin per
hour of $86.40 (2,800 hours × $86.40/ hour = $241,920).
(15 min.) S8-9
Req. 1
StoreAway should emphasize the production of regular size bins, since they are more profitable than the large size
bins. StoreAway should make as many regular bins as it can sell and then use the remaining machine hours to produce
large bins:
Number of machine hours available………………………..
Number of regular bins demanded………………………….
Divided by number of regular bins produced per hour….
Number of hours used to produce regular bins…………..
Number of hours still available………………………………
Multiplied by number of large bins produced per hour…
Number of large bins to produce……………………………
StoreAway should produce 38,400 regular size bins and 4,800 large size bins.