Bally Ho Inc. traded one of its used trailers (cost $ 15,000, accumulated depreciation $13,500) for another used trailer with a fair value of $ 2,400. Bally Ho also paid $ 300 to complete the transaction. Since the exchange will leave Bally Ho in the same economic position, this transaction lacks commercial substance. What is the gain or loss on the exchange? $900 gain $0 (no gain or loss) $675 gain $225 loss