Sunland Company sells one product. Presented below is information for January for Sunland Company. Sunland uses the FIFO cost flow assumption. All purchases and sales are on account. Assume Sunland uses a periodic system. Prepare all necessary journal entries, including the end-of-month closing entry to record cost of goods sold. A physical count indicates that the ending inventory for January is 111 units. (If no entry is required, select "No entry" for the account titles and enter 0 for the amounts. Credit account titles are automatically indented when amount is entered. Do not indent manually.) Jan.27 Accounts Receivable Sales Revenue Jan. 31 Inventory Cost of Goods Sold 1,599 Purchases Inventory Compute gross profit using the periodic system. Grossprofit $