On December 31, Strike Company traded in one of its batting cages for another one that has a cost of $538,160. Strike receives a trade-in allowance of $31,185. The old equipment had an initial cost of $231,000 and has accumulated depreciation of $196,350. Depreciation has been recorded up to the end of the year. The difference will be paid in cash. What is the amount of the gain or loss on this transaction?