10) Yellow Inc. is a calendar-year corporation. Its financial statements for the years ended 12/31/20 and 12/31/21 contained the following errors: 2020 2021 Salary Expense $40,000 understatement $60,000 overstatement Depreciation expense 15,000 understatement 40,000 overstatement Assume that the 2021 errors were not corrected and that no errors occurred in 2019. By what amount will 2021 income before income taxes be overstated or understated?