Stowe Inc. acquired equipment from the manufacturer on 11/1/15 and gave a noninterest-bearing note in exchange. Stowe is obligated to pay $504,700 on 5/1/16 to satisfy the obligation in full. If Stowe accrued interest expense of $4,900 on the note in its 12/31/2015 financial statements, what is the imputed ANNUAL interest rate? Round the the nearest whole percent. If you could please show your work, that would be great!