At the end of 2018, hauke company purchased 6,000, $1,000, 9% bonds. the carrying value of the bonds at december 31, 2018 was $5,880,000. the bonds mature on march 1, 2023, and pay interest on march 1 and september 1. hauke sells 3,000 bonds on september 1, 2019, for $2,964,000, after the interest has been received. hauke uses straight-line amortization. the gain on the sale is