The manufacturer's financial loan interest is 1, 2 1, 28.76 yuan. Generally, the financial loans of manufacturers adopt the repayment method of matching principal and interest, with a loan of 90,000 yuan, interest of 7% (annualized interest rate of 8.4%), three-year repayment (36 months), and monthly repayment: 2836.5438+0 yuan. The total loan interest for three years is: 12 128.76 yuan.