Marin Industries had one patent recorded on its books as of January 1, 2017. This patent had a book value of $412,800 and a remaining useful life of 8 years. During 2017, Marin incurred research and development costs of $97,000 and brought a patent infringement suit against a competitor. On December 1, 2017, Marin received the good news that its patent was valid and that its competitor could not use the process Marin had patented. The company incurred $93,500 to defend this patent. At what amount should patent(s) be reported on the December 31, 2017, balance sheet, assuming monthly amortization of patents?