P6.5 (LO 2), AP You have the following information for Van Gogh Inc. for the month ended October 31, 2022. Van Gogh uses a periodic inventory system for inventory. Instructions a. Calculate (i) ending inventory, (ii) cost of goods sold, (iii) gross profit, and (iv) gross profit rate under each of the following methods. 1. LIFO. 2. FIPO. 3. Average-cost. (Round weighted-average unit cost to three decimal places.) a. Calculate (i) ending inventory, (ii) cost of goods sold, (iii) gross profit, and (iv) gross profit rate under each of the following methods. 1. LIFO. 2. FIFO. 3. Average-cost. (Round weighted-average unit cost to three decimal places.) a. Gross profit: b. Compare results for the three cost flow assumptions. Compare specific identification, FIFO, and LIFO under a periodic inventory system; use cost flow assumption to influence gross profit