I- interest rate refers to the ratio of interest to principal;

I- interest;

F- the sum of principal and interest, also known as the sum or final value of principal and interest;

N-the number of interest periods.

Interest rate (I) usually gives annual interest rate and monthly interest rate, while daily interest rate should be converted;

Monthly interest rate = annual interest rate/12 (month)

Daily interest rate = annual interest rate /360 (days) = monthly interest rate /30 (days)

Interest = principal * interest rate * number of interest-bearing periods

I = P * i * n

∴ Interest =13000 * 0.0334% * 360 *1=1563.5438+02 yuan.

A: The annual interest is 65,438+0,563,438+0.2 yuan.