Where represents the present value, $3250 in your case, represents the annual percentage rate, 2% in your case, but expressed as a decimal, is the number of compounding periods per annum, 1 in your case, and is the duration of the investment in years.
Plug in the numbers and get out the calculator.
Total interest is
John
Egw to Beta kai to Sigma
My calculator said it, I believe it, that settles it