Windsor Industries has the following patents on its December 31, 2019, balance sheet. Patent Item Initial Cost Date Acquired Useful Life at Date Acquired Patent A $52,800 3/1/16 20 years Patent B $21,600 7/1/17 10 years Patent C $16,800 9/1/18 8 years The following events occurred during the year ended December 31, 2020. 1. Research and development costs of $327,900 were incurred during the year. 2. Patent D was purchased on July 1 for $10,800. This patent has a useful life of 12 years. 3. As a result of reduced demands for certain products protected by Patent B, a possible impairment of Patent B's value may have occurred at December 31, 2020. The controller for Windsor estimates the future cash flows from Patent B will be as follows. Year Future Cash Flows 2021 $2,500 2022 $2,500 2023 $2,500 The proper discount rate to be used for these flows is 8%. (Assume that the cash flows occur at the end of the year.) Click here to view factor tables Compute the total carrying amount of Windsor's patents on its December 31, 2019, balance sheet. Total carrying amount $