For exchanges of real property used in a trade or business (and other noncapital assets), enter the gain or. In operating cash flow, you start with net profit.This publication explains the tax rules that apply when you dispose of property, including when you dispose of only a portion of certain property. In this article, we discuss what asset sales are, how they work and how to calculate a loss or gain because of an asset sale. A realized gain is a profit resulting from selling an asset at a price higher than the original purchase price. For example, appreciated assets are possibly subject to capital gains taxes when sold. This video explains how to calculate and account for a sale of an asset when there is a gain or loss.