1. Demont Inc. has the following information relating to the main product of the company for October 2022. Unit Cost Required: 1. Assuming that the company operates under the periodic inventory system, Determine using FIFO (First-In-First-Out), LIFO (Last-In-First-Out) and AVERAGE: a. Inventory at October 31,2022 and cost of goods sold by October. b. Total sales and gross profit for October 2022 . Show calculations. 2. Assuming that the company operates under the perpetual inventory system. Determine using FIFO (First-In-First-Out), LIFO (Last-In-First-Out) y AVERAGE: a. Inventory as at October 31, 2022, cost of goods sold and total purchases by October 2022 . Use the format illustrated in tables. b. Total sales and gross margin for October 2022