Part II (11 marks) Arppel Company uses a periodic inventory system and closes its accounts annually on 31 December. Below are extracted from the books of the Company: $42,000 Account balance as at 31 Dec 2020 Inventory Account balance as at 31 Dec 2021 Purchases Sales Sales Returns $440,000 $890,000 $22,000 A complete physical inventory taken as at 31 December 2021 indicates goods costing $48,000 remains in stock. Required: (a) Compute (i) the cost of goods sold; (ii) gross profit; and (iii) the gross profit rate (in %) for the year 2021. Show workings. (6 marks) (b) Prepare two closing entries to create the Cost of Goods Sold account and update the Inventory account