The basic calculation formula of savings deposit interest is: interest = principal × deposit term × interest rate.
Interest rate conversion
The conversion relationship among annual interest rate, monthly interest rate and daily interest rate is: annual interest rate = monthly interest rate × 12 (month) = daily interest rate ×360 (day); Monthly interest rate = annual interest rate ÷ 12 (month) = daily interest rate ×30 (days); Daily interest rate = annual interest rate ÷360 (days) = monthly interest rate ÷30 (days).
Extended data
1. Interest is money other than the principal obtained from deposits and loans (different from "principal").
2. The abstract interest point refers to the value added when monetary funds are injected into the real economy and returned. Generally speaking, interest refers to the remuneration paid by the borrower (debtor) to the lender (creditor) for using the borrowed currency or capital. Also known as the symmetry of sub-fund and parent fund (principal). The calculation formula of interest is: interest = principal × interest rate × deposit period (i.e. time).
Interest is the reward that the fund owner gets for lending the fund, which comes from a part of the profits that the producer makes by using the fund to play its operational functions. Refers to the value-added amount brought by monetary funds injected into the real economy and returned. The calculation formula is: interest = principal × interest rate × deposit period × 100%.
3. Classification of bank interest
According to the different nature of banking business, it can be divided into bank interest receivable and bank interest payable.
Interest receivable refers to the remuneration that the bank obtains from the borrower by lending to the borrower; It is the price that the borrower must pay for using the funds; It is also part of the bank's profits.
Interest payable refers to the remuneration paid to depositors by banks to absorb their deposits; It is the price that banks must pay to absorb deposits, and it is also part of the cost of banks.