Bananas, Inc. is a calendar-year corporation. Its financial statements for the years ended December 31, 2019 and 2020 contained the following errors: 2019 2020 Ending Inventory Depreciation expense $25,000 $40,000 overstatement understatement 10,000 20,000 understatement overstatement Assume that no correcting entries were made in 2019 or 2020 and that no errors existed in 2018. Ignoring income taxes, by how much will retained earnings at December 31, 2020 be overstated or understated? Enter an overstatement as a positive number and an understatement as a negative number