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Check my work 4 The Central Valley Company is a manufacturing firm that 10 produces and sells a single product. The company's points revenues and expenses for the last four months are given below. e Book Central Valley Company Comparative Income Statement March April May June Print Sales in units 6,400 5,900 7,350 8, 800 Sales revenue $ 768 , 000 $ 708 , 000 $ 882 , 000 $1 , 056, 000 Less: Cost of goods sold 408, 100 382, 320 458,640 538 , 560 Gross margin $ 359, 900 $ 325 , 680 $ 423, 360 517,440 References Less: Operating expenses Shipping expense 64, 300 53,200 67,800 64,000 Advertising expense 91 , 000 91 , 000 91,000 91,000 Salaries and commissions 165,000 136,000 168,500 166,500 Insurance expense 16, 000 16,000 16,000 16,000 Amortization expense 49, 000 49 ,000 49,000 49,000 Total operating expenses $ 385 , 300 $ 345 , 200 $ 392, 300 386, 500 Net income $ (25, 400) $ (19,520) $ 31, 060 130, 940 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 per unit Shipping per unit Salaries & commission per unit eBook Print 2. Assume that fixed costs are incurred uniformly throughout the year. Compute the annual break-even References sales, and the profit if 82,000 units are sold during the year. (Round "Break-even sales" answer to nearest whole number.) Break-even sales units Annual profit (82,000 units) 3. Calculate the change in profit if the selling price were reduced by $11.50 each and annual sales were to increase by 7,800 units. 4. Determine the change in profit if the company were to increase advertising by $114,000 and if this were to increase sales by 7,800 units