Houston Office Equipment manufactures and sells metal shelving. It began operations on January 1, 2020. (Click the icon to view the costs incurred during 2020.) (Click the icon to view the inventory data.) Revenues in 2020 were $560,000. 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 2020. Finished-goods inventory at December 31, 2020, was $23,000. Read the requirements. Requirement 1. Calculate direct materials inventory, total cost, December 31, 2020. Determine the formula, then calculate ending direct materials total cost. Requirements 1. Calculate direct materials inventory, total cost, December 31, 2020. 2. Calculate finished-goods inventory, total units, December 31, 2020. 3. Calculate selling price in 2020. 4. Calculate operating income for 2020. Drint Done = Ending direct materials total cost = Data table Inventory data are as follows: Direct materials Work in process Finished goods 0 lb 0 units O units Beginning: January Ending: December 1, 2020 31, 2020 2,400 lbs 0 units ? units Production in 2020 was 110,000 units. Two pounds of direct materials are used to make one unit of finished product. - Data table Costs incurred for 2020 are as follows (V stands for variable; F stands for fixed): Direct materials used $143,000 V Direct manufacturing labor costs $41,000 V Plant energy costs $6,000 V Indirect manufacturing labor costs $11,000 V Indirect manufacturing labor costs $13,000 F Other indirect manufacturing costs $10,000 V Other indirect manufacturing costs $29,000 F Marketing, distribution, and customer-service costs $122,000 V Marketing, distribution, and customer-service costs $45,000 F Administrative costs $60,000 F Variable manufacturing costs are variable with respect to units produced. Variable marketing, distribution, and customer-service costs are variable with respect to units sold.