Mining Company acquired a patent on an oil extraction technique on January 1, year 1 for $48,554. It was expected to have a 19 year life and no residual value. Mining uses straight-line amortization for patents. On December 31, year 7, the expected future cash flows expected from the patent were expected to be $35,059 . The present value of these cash flows, discounted at Minings market interest rate, is $20,842. At what amount should the patent be carried on the December 31, year 7 balance sheet?