Diana Corporation provides the following information for 2017 Calculate a. cost of goods manufactured in 2017 and b. cost of goods sold in 2017 Variable manufacturing costs are variable with respect to units produced. Variable marketing, distribution, and customer-service costs are variable with respect to units sold. Production in 2017 was 100,000 units. Two pounds of direct materials are used to make one unit of finished product. Revenues in 2017 were $473,200. The selling price per unit and the purchase price per pound of direct materials were stable throughout the year. The company's ending inventory of finished goods is carried at the average unit manufacturing cost for 2017. Finished- goods inventory at December 31, 2017, was $20,970. Required 1. Calculate direct materials inventory, total cost, December 31, 2017. 2. Calculate finished-goods inventory, total units, December 31, 2017. 3. Calculate selling price in 2017. 4. Calculate operating income for 2017.