Current Attempt in Progress These are selected 2027 transactions for Pronghorn Corporation: Jan. 1 Purchased a copyright for $160,800. The copyright has a useful life of 6 years and a remaining legal life of 35 years. Mar. 1 Purchased a patent with an estimated useful life of 5 years and a legal life of 20 years for $90,000 Sept, 1 Purchased a small company and recorded goodwill of $150,200. Its useful life is indefinite. Indicate the amount of amortization expense on December 31, 2027, for Pronghorn Corporation. Amortization expense $