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Jan. 1 On hand, 10 units at $20 each Purchases Sales Jan. 8 25 units at $23 each Jan. 4 8 units @ $75 each 50 units at $26 each 15 20 units @ $75 each 22 28 15 units at $29 each 26 52 units @ $75 each Calculate the company's Ending Inventory on January 31 using Periodic LIFO. Select one: O O O a. $430 b. $454 c. $544 d. $565 Profitability Analysis Alex Enterprises reports the following information on its year-end income statement: Net sales $1,200,000 Operating expenses $276,000 92,000 Cost of goods sold 828,000 Other income Calculate Alex's gross profit percentage and profit margin. Round to one decimal place. Gross profit percentage Profit margin percentage %