1, interest rate = interest/(principal x term)
The calculation formula of interest rate is: interest rate = interest/(principal x term), in which the calculation formulas of annual interest rate and monthly interest rate are the same. Interest rate, that is, bank loan interest rate, is an important indicator to measure currency liquidity and economic activities. In the financial market, interest rates are widely used in loan, investment, risk management and other fields. The application of interest rate calculation formula can help people to calculate and predict future economic activities more accurately and provide scientific basis for economic decision-making.
2. Interest = principal × interest rate× deposit period
Interest = principal × interest rate× deposit period, in which interest rate is the key to calculate interest. If you borrow 15000 yuan, the annual interest rate is 10%, and the interest on borrowing 1 year is 15000 yuan. If you only borrow 65,438+00,000 yuan, interest = principal × interest rate × deposit period, that is, 65,438+05,000 yuan. In addition, the calculation formulas of total interest and deposit term have similar provisions. In short, the interest rate calculation method is the basis for calculating interest, which is particularly important for financial services such as loans and deposits.
3. Deposit interest = principal * maturity date * interest rate
Deposit interest = principal * term * interest rate, in which annual interest rate, monthly interest rate and daily interest rate are the basic formulas for calculating interest. There are many formulas for calculating the interest rate, but the basic formula for calculating the interest of savings deposits is: interest = principal * deposit period * interest rate. In addition, the conversion relationship between deposit interest rate and time deposit interest rate should also be considered. During the deposit period, the accrued interest and distress days shall be calculated according to the actual holding days.
4. Annual interest rate = (interest/principal) × 100%
Annual interest rate = (interest/principal) × 100% is a simple interest rate calculation method, in which interest refers to the interest income generated by funds within one year and principal refers to the original capital of investment. This method is suitable for investment with small capital, which can simplify the calculation formula and facilitate calculation. For example, if the principal is 1000 yuan and the interest earned is 100 yuan, the annual interest rate is 10%.