Triston Limited is a wholesaler of roller skates. Tanya Lawson, the owner, has highlighted some accounting issues facing the company. She has contracted you as an accounting consultant to address the issues and advise on the appropriate accounting treatment. The following information and issues relate to the financial year ending 30 June 2022. For this problem, you may ignore all taxes and GST. Relevant information follows: Q4: WARRANTY: Triston Limited offers a one year warranty on all roller skates and related products that it sells to customers. Whereby, if the items are faulty as per the conditions of the warranty, customers can return the item back to the company for full repairs or replacement. Beginning balance of "Warranty provision" as at 1 July 2021: $1,200,000 Of the total warranty claim costs, 50% were wages costs, and the remainder being inventory parts costs. Total wages costs in relation to warranty claims during the year: $520,000 Total sales for the year ended 30 June 2022: $30,000,000 At 30 June 2022, Triston Limited estimated its liability for unexpired warranty contracts stands at 4% of total sales during the year. Q4(a): Prepare the necessary general journal entries to update the warranty provision as at 30 June 2022. Label Debit accounts with "Dr" and Credit accounts with "Cr". For example: (Dr) Asset $XXXXX, (Cr) Revenues $XXXXX. Ignore GST & narrations, fill in your answer here. [Q4(a) = 3 marks] Q4(b): Calculate the closing balance as at 30 June 2022 for the "warranty provision" general ledger account after all the necessary journal entries and updates have been made, fill in your answer here