can anyone help me to solve this?

CT2.1 Khan Products Ltd. uses a job order cost system. For a number of months, there has been an ongoing rift between the sales department and the production department concerning a special- order product, TC.1. TC-1 is a seasonal product that is manufactured in batches of 1,000 units. TC-I is sold at cost plus a markup of 40% of cost. The sales department is unhappy because fluctuating unit production costs significantly affect sell- ing prices. Sales personnel complain that this has caused excessive customer complaints and the loss of considerable orders for TC-1. The production department maintains that each job order must be fully costed on the basis of the costs incurred during the period in which the goods are produced Production personnel maintain that the only real solution is for the sales department to increase sales in the slack periods. Suraiya Patel, president of the company, asks you as the company accountant to collect quarterly data for the past year on TC-1. From the cost accounting system, you accumulate the following produc- tion quantity and cost data Quarter Costs Direct materials Direct labor Manufacturing overhead Total Production in batches Unit cost (per batch) Rs 100,000 60,000 105,000 R$265.000 R$220,000 132,000 153,000 Rs505,000 Rs 80,000 48.000 97.000 R$225,000 Rs200.000 120,000 125,000 R$445.000 Rs 53,000 Rs 45,909 Rs 56,250 Rs 44.500 Instructions With the class divided into groups, answer the following questions a. What manufacturing cost element is responsible for the fluctuating unit costs? Why? b. What is your recommended solution to the problem of fluctuating unit cost? c. Restate the quarterly data on the basis of your recommended solution