I know the correct answer, but do not know how to compute it. Please be very detailed

On January 1, Pierce Corporation issues $500,000, 5 -year, 12% bonds at 96 with interest payable on January 1. What is the carrying value of the bonds at the end of the third interest period if amortization is $4,000 per year? $492,000 $464,000 $488,000 $472,000