Chongqing Chongdai Company borrows 300,000 yuan for one year with interest of 1 1550-72000. If the loan interest is calculated according to the highest loan interest rate of 24%, the loan interest of 300,000 yuan can be as high as 72,000 yuan a year. According to the lowest interest rate, the lowest interest rate is 1 1550 yuan. Bank loans are very common in daily life, such as car loans and loans. And the bank has strict requirements on the qualifications of borrowers.