typical profit margins But administrators lost £990 a year compared to full-time employees and the average sales or customer service worker lost £800 a year. Brexit offers a chance to "reshape the structure of the UK economy", but the impact of regulatory barriers could hurt carmakers and the financial sector. Investment in securities is conducive to adjusting capital investment and improving the efficiency of capital use, thus guiding the rational flow of resources and realizing optimal allocation of resources. 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. In such a simple deal, the details and considerations of the plan have exceeded what many traders can do in real deals. Therefore, it is not difficult to understand why so many people lose money in the foreign exchange futures market. During the depression, the rate of interest reduction, the expansion of money supply, stimulate economic development. During the expansion period, the interest rate increases, the money supply is reduced, and the economic development is suppressed. So, interest rates have a big impact on our lives.