gross profit calculation in excel As hicks income concept did not specify what is called "equal wealth", and thus the income concept formed the basis of many debates concept, and the theory of accounting earnings, especially the capital preservation theory has a great influence. In accounting, people used to call "maintaining the same level of affluence" as capital preservation. Lay the foundation Smarter company has started from the race, culture, age and objective aspects of diverse work, and "" Women in Blockchain" organization) and "Social Impact" initiatives have been all over the world, make more Women into the block chain domain. Do foreign exchange business plan has a lot of principles and rules, but if it comes down to the simplest elements, it is nothing but make a entry and exit the starting point for any deal, at the end of the deal is profitable. Once the starting point is established, the change in the price level can be attributed to rising, falling or maintaining the original state. A trading plan must draw up a blueprint for action to enter the actual trading market. Once the price level has occurred to any of the three changes mentioned above, the trader can make the decision to buy or sell according to the plan. 3. The cost of accounting earnings is listed in historical cost. Due to the current accounting practice in the enterprise asset is measured at the historical cost in, with the cost nature is the historical cost has been derived from the law of the transfer, so as to determine the income is an important factor in the cost and the historical cost.