If the loan is repaid in 3 12 months, is the monthly interest rate of 820 high?
According to China's current laws, those whose annual interest rate is higher than 36% belong to usury.
The principal is 30,000 yuan, 1 month with interest of 820 yuan, with annual interest rate of 820* 12=9840 and annual interest rate of 9840/30,000 = 32.8%.
Not up to the standard of usury, but the interest rate is already high.