I need help answering the question in the attached file

Problem 1-Matching Accounting Changes to Situations The four types of accounting changes, including error correction, are: Change in accounting principle. Change in accounting estimate. Change in reporting entity. Error correction. Following are a series of situations. Enter a code letter to the left to indicate the type of change. 1. Change from presenting nonconsolidated to consolidated financial statements. 2. Change due to charging a new asset directly to an expense account. 3. Change from expensing to capitalizing certain costs, due to a change in periods benefited. 4. Change from FIFO to LIFO inventory procedures. 5. Change due to failure to recognize accrued (uncollected) revenue. 6. Change in amortization period for an intangible asset. 7. Changing the companies included in combined financial statements. 8. Change in the loss rate on warranty costs. 9. Change due to failure to recognize and accrue income. 10. Change in residual value of a depreciable plant asset. 11. Change from an unacceptable to an acceptable accounting principle. 12. Change in both estimate and acceptable accounting principles. 13. Change due to failure to recognize a prepaid asset. 14. Change from straight-line to sum-of-the-years'-digits method of depreciation. 15. Change in life of a depreciable plant asset. 16. Change from one acceptable principle to another acceptable principle. 17. Change due to understatement of inventory. 18. Change in expected recovery of an account receivable. Problem 2Changes in Depreciation Methods, Estimates On January 1, 2008, Powell Company purchased a building and machinery that have the following useful lives, salvage value, and costs. Building, 25-year estimated useful life, $5,000,000 cost, $500,000 salvage value Machinery, 10-year estimated useful life, $700,000 cost, no salvage value The building has been depreciated under the straight-line method through 2012. In 2013, the company decided to switch to the double-declining balance method of depreciation for the building. Powell also decided to change the total useful life of the machinery to 8 years, with a salvage value of $35,000 at the end of that time. The machinery is depreciated using the straightline method. Prepare the journal entry necessary to record the depreciation expense on the building in 2013. Compute depreciation expense on the machinery for 2013. Problem 3Accounting for Changes and Error Corrections Dyke Company's net incomes for the past three years are presented below: 2014 2013 2012 $480,000 $450,000 $360,000 During the 2014 year-end audit, the following items come to your attention: 1. Dyke bought equipment on January 1, 2011 for $294,000 with a $24,000 estimated salvage value and a six-year life. The company debited an expense account and credited cash on the purchase date for the entire cost of the asset (Straight-line method). 2. During 2014, Dyke changed from the straight-line method of depreciating its cement plant to the double-declining balance method. The following computations present depreciation on both bases: 2014 2013 2012 Straight-line 36,000 36,000 36,000 Double-declining 46,080 57,600 72,000 The net income for 2014 was computed using the double-declining balance method, on the January 1, 2014 book value, over the useful life remaining at that time. The depreciation recorded in 2014 was $72,000. 3. Dyke, in reviewing its provision for uncollectable during 2014, has determined that 1% is the appropriate amount of bad debt expense to be charged to operations. The company had used 1/2 of 1% as its rate in 2013 and 2014 when the expense had been $18,000 and $12,000, respectively. The company recorded bad debt expense under the new rate for 2014. The company would have recorded $6,000 less of bad debt expense on December 31, 2014 under the old rate. Instructions Prepare in general journal form the entry necessary to correct the books for the transaction in part 1 of this problem, assuming that the books have not been closed for the current year. Compute the net income to be reported each year 2012 through 2014. Assume that the beginning retained earnings balance (unadjusted) for 2012 was $1,260,000. At what adjusted amount should this beginning retained earnings balance for 2012 be stated, assuming that comparative financial statements were prepared? Assume that the beginning retained earnings balance (unadjusted) for 2014 is $1,800,000 and that noncomparative financial statements are prepared. At what adjusted amount should this beginning retained earnings balance be stated? Support your responses with examples