Rick's Crane Company manufactures three different crane engines with 50 horsepower (hp), 60 horsepower, and 70 horsepower engines, respectively. Relevant information for each engine is provided as follows:

Total manufacturing overhead cost pools:
Engineering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $102,400
Quality control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88,400
Purchasing costs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49,200
Machine maintenance costs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81,000
Total costs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $321,000
Required:
1. Determine the gross margin for each product allocating manufacturing overhead costs on the basis of production volume (units produced).
2. Identify appropriate allocation bases for each of the four pools of manufacturing overhead costs.
3. Determine the ABC allocation rates for each of the four cost pools suggested in part (2).
4. Using the allocation bases suggested in part (2), determine manufacturing overhead costs per product.
5. a. Determine the gross margin per product using the manufacturing overhead costs determined in part (4).
b. Interpretive Question: Which of the methods (unit-based costing or activity-based costing) is the better method to allocate the manufacturing overheadcosts?

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70 hp 50 hp 60 hp Per Per Per Total Total Total Unit Unit Unit Units produced. 2,000 $370,000 $185 $510,000 $255 $540 2,500 $425,000 $170 $595,000 $238 $450 1,500 $360,000 $240 $472,500 $315 $630 Direct materials cost. Direct labor cost. Sales price. Purchases per year Number of machine setups per year. Engineering change orders per year 44 52 54 60 68 80 72 84 100