Combat Fire, Inc. manufactures steel cylinders and nozzles for two models of fire extinguishers: (1) a home fire extinguisher and (2) a commercial fire extinguisher. The home model is a high-volume (54,000 units), half-gallon cylinder that holds 2 1/2 pounds of multi- purpose dry chemical at 480 PSI. The commercial model is a low volume (10,200 units), two-gallon cylinder that holds 10 pounds of multi-purpose dry chemical at 390 PSI. Both products require 1.5 hours of direct labor for completion. Therefore, total annual direct labor hours are 96,300 or [1.5 hours x (54,000 + 10,200)). Estimated annual manufacturing overhead is $1,588,566. Thus, the predetermined overhead rate is $16.50 or ($1,588,566 +96,300) per direct labor hour. The direct materials cost per unit is $18.50 for the home model and $26.50 for the commercial model. The direct labor cost is $19 per unit for both the home and the commercial models The company's managers identified six activity cost poots and related cost drivers and accumulated overhead by cost pool as follows. Estimated Use of Drivers by Product Home Activity Cost Pools Receiving Forming Assembling Testing Painting Packing and shipping 215.000 27,000 165,000 Cost Drivers Pounds Machine hours Number of parts Number of tests Gallons Pounds Estimated Use of Cost Drivers 335,000 35.000 217,000 25,500 5,258 335.000 Estimated Overhead $87.100 155,050 412,300 46,920 63,096 824.100 $1,588,566 Commercial 120,000 8.000 52,000 10,000 1.578 120,000 15,500 3,680 215.000 (b) Under ABC, prepare a schedule showing the computations of the activity-based overhead rates (per cost driver). (Round overhead rate to 2 decimal places, eg. 12.25.) Estimated Overhead Estimated Use of Cost Drivers Activity-Based Overhead Rate Activity Cost Pool Receiving Pounds pe poi pe ma Machine hours $ Forming $ Assembling Parts pe par Tests $ pe Testing Gallons $ Painting pe gal Packing and shipping $ Pounds pe poi