uses activity-based costing to compute product margins. Overhead costs have already been allocated to the company's three activity cost po activity cost pools appear below. Processing Supervising Other $ 21,600 $ 3.700 $ 10,700 Processing costs are assigned to products using machine-hours (MHs) and Supervising costs are assigned to produots using the number of batches. The costs in the Othe Activity data appear below Product 1 Product vo MS Processing) 3,700 6,300 10,000 Batches Supervising 400 600 1.000 Total Finally, sales and direct cost data are combined with Processing and Supervising costs to determine product margins. Sales totally Diret materials totall Direct labor totalt Prod Y Pet 5102,200 370,00 $ 40,000 $ 39,100 $ 47,200 322,300 What is the product margin for Product Vo under activity-based costing? a. -$3,800 b. $4,728 . $17,500 d. $1,672