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. FIFO. 3. Average-cost. (Round weighted-average unit cost to three decimal places.)