formula for economic profit This refers to the industrial handicraft industry from the feudal society to the early stage of capitalism. In the 16th century to the 17th century, some western countries of the feudal social system to the system of capitalism, capitalist primitive accumulation is accelerated, deprived of farmers' land on a large scale, make cottage industry collapse, sharply to capitalism works system transformation. Industrial handicraft industry is the embryonic form of enterprise. Ms lagarde said she recently to Britain and the European Union in the civil rights, Northern Ireland and financial settlement negotiations welcome breakthrough, but said, the final agreement was established to minimize the trade barriers, and to provide enough time to implement change. The form of shares is the share certificate. Different types of joint-stock enterprises, the specific form of their share certificates are different. Among them, only the limited company is used to express the company shares the form is the stock. Stock shall be recorded according to the amount of capital represented by the shares and shall be recorded by shareholders' share of capital contribution and shareholder rights for the public subscription and transfer of transactions. Holding a stock means owning a stake in a limited company, acquiring a shareholder's qualification, and exercising shareholder rights. Thus, surplus value is the intrinsic essence of profit, and profit is the phenomenon form of surplus value. Surplus value into profit, the profit and then into average profit, etc., hierarchy, the more the more escalated from abstract to concrete, it is close to the reality of capitalist society and the consciousness of the capital relationship between the parties; As a result, capital relations are becoming more and more mysterious as they leave their own source or base and get further and further away. Bourgeois economists for capitalism exploitation system, trying to deny the existence of the surplus value, no conflict between capital and employment, the product of the profit as capital itself, as the result of both production and circulation process. The so-called trinity formula of profit (interest), labor wage and land rent is the most explicit and typical defense argument of bourgeois vulgar economy. Marx's theory of profit is the transformation form of surplus value, profoundly reveals the essence and source of the profit, and profit further transformation of various concrete form again and they reflect the complexity of the capitalist production relations and class performance, thus for the proletariat and working people struggle against the bourgeoisie, and fight for the liberation of revolution provides the theory of sharp weapons.