Zeta Electric uses the periodic inventory system. Zeta reported the following selected amounts at May 31, 2018: (Click on the icon to review the data.) Compute the following for Zeta: Cost of goods sold b. Gross profit a. Compute the cost of goods sold. Cost of Goods Sold: Less: Plus Less: Cost of Goods Sold i Data Table Merchandise Inventory, June 1, 2017 Merchandise Inventory, May 31, 2018 $ 17,000 Freight In 21,000 Net Sales Revenue 80,000 Common Stock 3,500 Retained Earnings 8,000 $ 7,500 173,000 18,000 12,000 Purchases Purchase Discounts Purchase Returns and Allowances Print Done