Kingsport Containers Company makes a single product that is subject to wide seasonal variations in demand. The company uses a job-order costing system and computes predetermined overhead rates on a quarterly basis using the number of units to be produced as the allocation base. Its estimated costs, by quarter, for the coming year are given below: Quarter Direct materials Direct labor Manufacturing overhead FirstSecond Third Fourth $240,000 $120,000 $ 60,000 $ 180,000 128,000 64.000 32,000 96.000 300,000 220,000 180,000 $668,000 $404,000 $272,000 $ 80,000 40,000 20,000 Total manufacturing costs (a) 60,000 Number of units to be produced (b) Estimated unit product cost (a b) $ 8.35 $ 10.10$ 13.60 Management finds the variation in quarterly unit product costs to be confusing and difficult to work with. It has bee total manufacturing cost. Accordingly, you have been asked to find a more appropriate way of assigning manufacturing overhead cost to units of product. n suggested that the problem lies with manufacturing overhead because it is the largest element of Required 1-a. Using the high-low method, estimate the fixed manufacturing overhead cost per quarter and the variable manufacturing overhead cost per unit Fixed manufacturing overhead cost Variable manufacturing overhead per quarter per unit