You are provided with the following balances from the accounting records of Marte Ltd for the year ended 30 June 2021: 2021 2020 Inventory 5 600 000 4 800 000 Allowance for obsolete inventory 20 000 20 000 Additional information: The company has maintained its allowance for obsolete inventory at $20 000 over the past few years based on the identification of slow-moving inventory items. In 2021, a physical inspection of inventory revealed that certain inventory items, which previously had sold quickly, had not been selling as expected due to a combination of operational factors and changes in demand due to COVID-19. The Warehouse Manager has estimated that the value of these slow-moving items is approximately $50 000. The Financial Accountant has proposed that the Allowance for obsolete inventory be increased to more accurately reflect the net realisable value of inventory. Required: Use the information above to answer the following questions: Assuming Marte Ltd decides to increase its allowance from $20 000 to $50 000, indicate whether this would constitute a change in accounting policy or a change in accounting estimate. Provide an explanation for your answer. (1 mark) Prepare the relevant journal entries necessary to record the increase in the allowance to $50 000 for 2021. (1 mark)