In the early 20th century, famous American economist elvin fisher developed the theory of economic gain. In its book "the nature of capital and yield", first, the concept of yield is analyzed in terms of the performance of earnings, and three different types of benefits are proposed: The social profit generated by enterprise activities is the addition of economic profit or the external economic effect of the activity. Companies may make significant monetary profits, but external economic effects often result in negative results, and substantial social profits may be minimal. Such as the industrial revolution, the mass production of the factory is low cost and price of product, but in order to earn maximum profit, factory owners and lower production costs, lead to the low wages of child labor, as well as improper handling industrial waste or contaminants and other social burden. 2. Accounting earnings are based on the assumption of accounting instalments, which refers to the production and operation results of a certain period of time. Early accounting earnings is calculated according to the cash basis, and the modern accounting earnings is according to the classification current income and expenses of accrual basis, after the appropriate ratio calculated. However, the benefits of cash determination are more acceptable to users. Activity-based costing (ABC) is an efficient management technique for assigning and governing the overhead costs. Overhead expense analysis and assignment can be produced more accurate through the use of ABC processes for a wide range of products, for product expenses and profitability analysis as well as for appropriate distribution and control over the overheads. The company's chief executive and chairman Venkat Meenavalli media interview said: "the ultra high current market valuation is not reasonable and not real, we put the ipo pricing valuation for $5 is a very good description." But he emphasised: "we are a profitable company that has nothing to do with the current digital currency frenzy. Longfin has grown at a rapid rate of 200 per cent over the past six months and earned a profit of $28m. The earliest efforts were made in the areas of canning, Alexandria, munez and spaurous. As a small home-based business owner, you will anyway pay an income tax to your earnings and profits. Taxes usually have to get paid quarterly, depending on how profitable the business enterprise is perfect for you. With a wellness industry small home based business, you will probably create a nice profit as time passes after your small business is fully established. Using small home-based business tax form software can help you determine how much you should pay each quarter on your income tax to stop paying a great deal of tax after 4 seasons or being hit with penalties.