Sun 011 Production mm Pla plussham Direct costs $8,000 $10,000 $20,000 Service used ED 10% 40% 50% IS 0 30% 50% Production volume 8,000 4,000 Required: Using the information provided: a) Determine the total cost of operations for each production department under the direct method. 1:) Determine the total cost of operations for each production department under the step-down method. c) Determine the total cost of operations for each production department under the reciprocal method