A friend borrows 20W, saying one month's interest 1.5. How much should I get for a year's loan?
20W * 1.5% * 12+20W = 23.6 w
The monthly interest rate 1.5% and the annual interest rate 18% are quite high. The current loan interest rate is 6.56% for one year and 7.05% for five years and above.