maximum profit calculus The marxist theory holds that the profit under the capitalist system is the transformation form or phenomenon of surplus value, which manifests as the balance of commodity value over cost price. That is, the total amount of the proceeds of the sale of the goods by the capitalist exceeds the balance of his prepaid capital. Profit from a home variable capital purchase Labour created in the process of production of surplus value, also is the surplus labor hiring workers create surplus value, can change capital proliferation. But it is manifested in the phenomenon as the capital increase of capital of capital of capital. At present, there are 89, 92, 95 and other labels on the market, which represent the octane value of gasoline, which means the anti-detonation of gasoline, which has nothing to do with the cleaning of gasoline. The so-called "high label gasoline is cleaner" is misleading. It is more scientific, more economical, and can give full play to the engine's efficiency according to the engine compression ratio or the requirement of the automobile instruction manual. Although miolo is doing well in China, tiloni also talks about his worries. He believed that the greatest advantage of the Brazilian wine is cost-effective, but compared with wine importing "zero tariff" neighboring Chile, Brazil wines in the Chinese market at present stage, there is no big advantage to speak of. "Our biggest problem right now is the price," he said. "our wine is very competitive when it comes out of the factory." But Chile and China have zero tariff agreements on wine trade, and we don't, which makes our products much more expensive in China. However, I believe that this problem will be solved and the demand for wine in the Chinese market is very high. I believe that the future development of Brazilian wine in China should be good. As the dental industry is rapidly expanding, the requirement of dentists and staffs has risen tremendously. A dental clinic needs to consider employing more and more candidates to own top quality and efficient patient care. Apart from patient care, there are lots of other needs that have to be handled with professionalism, trust , care. It is because of this belief that some of the most efficient and experienced staffs including dentists are expected in the industry. However, occasionally, the need for extra dentists could be short-term. On the other hand, some dental practices may additionally require a temporary dentist to meet the duties of another. To shape these politicians' views, they can better explain why co-operation with fiscal authorities and foreign central Banks is in the public interest. They can release more detailed financial accounts, including individual security deals and counterparties. Powerful and smart key logger software programs are safe, reliable and value effective application which quickly monitors all unauthorized/external users’ activities and generates report in encrypted log files that may be sent at pre defined email address or upload at html page using FTP server setting. Key logger software is suitable for different version of Windows systems including Windows XP, Windows Vista, Windows 2000, and Windows 7 etc for monitoring internet activity details performed on your own laptop. Propagating the value proposition of the public chain to new participants - redefining "profit" to cover economic and social value.