Mary's Mugs produces and sells various types of ceramic mugs. The business began operations on January 1, year 1, and its costs incurred during the year include these Variable costs (based on mugs produced): Direct materials cost Direct manufacturing labor costs Indirect manufacturing costs Administration and marketing s 3,000 12,810 1,000 2,360 Fixed costs Administration and marketing costs Indirect manufacturing costs 11,300 4,190 On December 31. year 1, direct materials inventory consisted of 3,000 pounds of material. Production in that year was 10.000 mugs. All prices and unit variable costs remained constant during the year Sales revenues for year 1 was $31 200. Finished goods inventory was $4.200 on December 31, year 1. Each finished mug requires 0.4 pounds of material. (Do not round intermediate calculations.) Required: a. Compute the direct materials inventory cost, December 31, year 1. rect materials inventory b. Compute the finished goods ending inventory in units on December 31, year 1. (Do not round intermediate calculations.) Finished goods inventory units c. Compute the selling price per unit. (Round your answer to 2 decimal places.) Selling price d. Compute the operating profit (loss) for year 1 Operating profit (loss)