Creighton, Inc. determined that it had incorrectly estimated both the useful life and the estimated residual value of equipment which it purchased 2 years ago. When accounting for the change in its accounting estimates, Creighton must correct the financial statements of prior years affected by the errors in the estimates. determine the book value at the point of change and depreciate that amount over the remaining useful life. add the amount of the error to the amount of the current year's depreciation expense. O determine the effect of the error and report it as a loss on the income statement in Other Revenues and Expenses