XYZ Co purchased a machine with an estimated useful life of 5 years for $34,000 on 30 September 20X5. XYZ Co planned to scrap the machine at the end of its useful life and estimated that the scrap value at the purchase date was $4,000. On 1 October 20X8, XYZ revised the scrap value to $2,000 due to the decreased value of scrap metal

a)What is the depreciation charge for the year ended 30 September 20X9?

b)Prepare relevant T Accounts.