Problem 20-13 (Algo) Accounting changes and error correction; seven situations; tax effects com [LO20-1, 20-2, 20-3, 20-4, 20-6] Williams-Santana, Inc., is a manufacturer of high-tech industrial parts that was started in 2009 by two talented engineers wit business training. In 2021, the company was acquired by one of its major customers. As part of an internal audit, the followi were discovered. The audit occurred during 2021 before any adjusting entries or closing entries were prepared. The incom 25% for all years. a. A five-year casualty insurance policy was purchased at the beginning of 2019 for $38.500. The full amount was debited insurance expense at the time. b. Effective January 1, 2021, the company changed the salvage value used in calculating depreciation for its office building building cost $638,000 on December 29, 2010, and has been depreciated on a straight-line basis assuming a useful lif and a salvage value of $110,000. Declining real estate values in the area indicate that the salvage value will be no more $27,500. c. On December 31, 2020, merchandise inventory was overstated by $28,500 due to a mistake in the physical inventory the periodic inventory system. d. The company changed inventory cost methods to FIFO from LIFO at the end of 2021 for both financial statement and purposes. The change will cause a $995,000 increase in the beginning inventory at January 1, 2022 e. At the end of 2020, the company failed to accrue $17,100 of sales commissions earned by employees during 2020. TH was recorded when the commissions were paid in early 2021. f. At the beginning of 2019, the company purchased a machine at a cost of $790,000. Its useful life was estimated to be no salvage value. The machine has been depreciated by the double-declining balance method. Its book value on Dee 2020, was $505,600. On January 1, 2021, the company changed to the straight-line method.. g. Warranty expense is determined each year as 1% of sales. Actual payment experience of recent years indicates that C better indication of the actual cost. Management effects the change in 2021. Credit sales for 2021 are $4,700,000; in were $4,400,000. Required: For each situation: 1. Identify whether it represents an accounting change or an error. If an accounting change, identify the type of change errors, choose "Not applicable". 2. Prepare any journal entry necessary as a direct result of the change or error correction, as well as any adjusting entm related to the situation described. Any tax effects should be adjusted for through Income tax payable or Refund-incor Complete this question by entering your answers in the tabs below.