restaurant profit and loss Interest determines the regularity of prescriptive (interest this qualitative rules will determine the amount of the rules), the amount of interest depends on profit, interest rate depends on the average profit margin. Marx further pointed out that, between average profit margin and zero, interest rate depends on two factors: one is profit margin; The second is the proportion of total profits allocated between lenders and borrowers. In general, the banking sector is healthier. While some banks are struggling, many banks have experienced improvements in operations. The following outstanding banks are chosen as based on eight measures on financial health including net interest margin, return normally equity, nonperforming loans, and reserves as being a percentage of NPLs. 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 difference between financial capital preservation and physical capital preservation According to the pantheon of macroeconomics Klaus weiss peterson (Claus Vistesen), which suggests that the management committee "is still not willing to" the strong growth prospects into the core of higher inflation forecasts. According to Jerome McCarthy, "basic marketing" : a market is a group of potential customers with the same needs; They are willing to trade the goods or services offered by the seller in exchange for something of value, which is the way to meet the demand.