Financial management. An enterprise borrows 50,000 yuan, with an annual interest rate of 8%, and repays the principal and interest in equal installments for 65,438+02 months, then the effective interest rate of the loan is 8849 yuan.

50000x8%/50000/2

According to the known present value, term and interest rate, find annuity A, and the present value coefficient of annuity (P/A, 12%, 10)=5.6502.

Because z: p = a (p/a, 12%, 10).

So: A=P/(P/A, 12%, 10)=50000/5.6502=8849 (yuan).

For example:

200,000×12% = 24,000 (total interest)

12%÷ 12= 1% (monthly interest rate), that is, the actual interest is 1 minute.

200000+24000 = 224000 ÷12 =18666.67 (monthly repayment amount)

Extended data:

1. When the interest period is one year, the nominal interest rate is equal to the real interest rate; When the interest period is shorter than one year, the real interest rate is greater than the nominal interest rate.

2. The nominal interest rate can't fully reflect the time value of funds, but the real interest rate truly reflects the time value of funds.

3.I stands for the real interest rate, R stands for the nominal interest rate, and N stands for the number of annual interest calculations, so the relationship between the nominal interest rate and the real interest rate is

1+ nominal interest rate =( 1+ real interest rate) *( 1+ inflation rate), which is generally simplified as nominal interest rate = real interest rate+inflation rate?

4. The greater the nominal interest rate, the shorter the term, and the greater the difference between the real interest rate and the nominal interest rate.

Baidu Encyclopedia-Real Interest Rate