T 18 PART 1: On January 1, 2018, Connor Ball Co. purchased machinery at a cost of $58,000. The machinery is expected to last 10 years and have a residual value of $6,000. Required: Prepare a schedule computing depreciation and the book value of the machinery for 2021 and 2022 assuming the sum-of-the-years'-digits method is used. Show your work in good form. 20 21 22 Prepare a schedule computing depreciation and the book value of the machinery for 2021 and 2022, assuming double-declining balance method is used. Show your work in good form. 23