When marketing through websites, mobile phone applications, posters and other channels, institutions engaged in loan business should show the annualized interest rate to borrowers in an obvious way. Institutions engaged in loan business include, but are not limited to, deposit-taking financial institutions, auto finance companies, consumer finance companies, microfinance companies and Internet platforms that provide advertising or display platforms for loan business. The annualized loan interest rate is calculated according to the ratio of all loan fees charged by the borrower to the actual loan principal, and converted into annualized form. The annualized loan interest rate can be calculated by compound interest or simple interest method: compound interest is calculated by internal rate of return; If the simple interest calculation method is adopted, it should be explained that it is simple interest.
Interest rate refers to the ratio of the amount of interest to the amount of borrowed funds (principal) in a certain period. Interest rate is the main factor that determines the capital cost of enterprises, and it is also the decisive factor for enterprises to raise funds and invest. To study the financial environment, we must pay attention to the current situation and changing trend of interest rates. Interest rate refers to the ratio of the interest amount due in each period to the par value of the borrowed, deposited or borrowed amount (called the total principal). The total interest of the lent or borrowed amount depends on the total principal, interest rate, compound interest frequency and the length of time of lending, deposit or borrowing. Interest rate is the price that the borrower needs to pay for the money borrowed, and it is also the return that the lender gets by delaying his own consumption and lending it to the borrower. The interest rate is usually calculated by the percentage of one-year interest to the principal. In modern economy, interest rate, as the price of capital, is not only restricted by many economic and social factors, but also has a great influence on the whole economy. Therefore, modern economists pay special attention to the relationship between various variables and the balance of the whole economy when studying the decision of interest rate. Interest rate is the interest level of unit currency in unit time, indicating the amount of interest. Economists have been trying to find a set of theories that can fully explain the structure and changes of interest rates. Interest rates are usually controlled by the national central bank and managed by the US Federal Reserve. So far, all countries regard interest rate as one of the important tools of macro-control.