First, for example, the total loan amount 1000 yuan, with a monthly interest rate of 5%. Then the liabilities at the end of the first month are 1050 yuan, of which the principal 1000 yuan and the interest is 50 yuan. Suppose you choose to repay 200 yuan at the end of the first month, then the 200 yuan will repay 50 yuan's interest first, and the remaining 150 yuan will repay the principal, that is, the principal you still need to repay will become 850 yuan. At the end of next month, your debt is the principal 850 yuan plus interest of 850*0.05.
Two, the principal is the original amount of loans, deposits or investments before interest calculation. As a whole, the principal of an enterprise (including fixed capital and working capital) is simultaneous, and it is spatially juxtaposed at different stages, showing different forms of principal occupation. Every professional form of principals is constantly changing from the last stage to the next stage, and from one form to another. Principal requires financial institutions not only to implement the policy of "developing economy and ensuring supply" to ensure the capital needs of enterprises' production and operation and foreign investment activities, but also to practise economy, rationally allocate principal and give full play to the regulatory role of finance in production and operation and foreign investment activities. So as to make full use of monetary resources and comprehensively improve the economic benefits of enterprises.
3. Interest refers to the use fee of money in a certain period of time, and refers to the remuneration that the money holder (creditor) gets from the borrower (debtor) for lending money or monetary capital. Including deposit interest, loan interest and interest generated by various bonds. Under the capitalist system, the source of interest is the surplus value created by hired workers. The essence of interest is a special transformation form of surplus value and a part of profit.
4. As the use price of funds, interest plays a very important role in the operation of market economy, mainly in the following aspects:
1. Functions that affect enterprise behavior
2. Functions that affect residents' asset selection behavior
3. Functions that affect government behavior
Influencing factors of verb (abbreviation of verb)
1. The amount of interest depends on three factors: principal, deposit period and interest rate level.
2. The calculation formula of interest is: interest = principal × interest rate × deposit term.
3. According to State Taxation Administration of The People's Republic of China Guoshuihan [2008] No.826, since June 5, 2008+10/October 9, personal income tax on savings deposit interest is temporarily exempted, so the interest tax on pre-project savings deposit interest is temporarily exempted.