The Central Valley Company is a manufacturing firm that produces and sells a single product. The company's revenues and expenses for the last four months are given below. Sales in unite Sales revenue Less: Cost of goods sold Central Valley Company Comparative Income Statement March 6,300 $762,300 405,450 5 356,850 April 5,800 May 7,200 June 8,600 $1,040,600 453,024 530,706 $ 701,800 $ 71,200 Gross margin Less: Operating expenses Shipping expense Advertising expense Salaries and commissions Insurance expense Amortization expense Total operating expenses Net incone $ 64,100 89,500 164,700 15,500 48,500 $302,300 378,972 $322,828 $418,176 $ 509,894 $ 53,400 $ $ 67,600 64,500 89,500 89,500 89,500 136,500 168,000 167,000 15,500 15,500 15,500 48,500 48,500 48,500 $385,000 $343,400 $309,100 $ (25,450) $ (20,572) 5 29,076 $ 124,894 Required: 1. Management is concerned about the losses experienced during the spring and would like to know more about the cost behaviour. Develop a cost equation for each of the costs. (Do not round intermediate calculations. Round "Per Unit" answers to 2 decimal places.) Cost of goods sold Shipping Salaries & commission per unit per unit per unit