Presented below is information taken from a bond investment amortization schedule with related fair values provided. These bonds are classified as available-for-sale. 12/31/20 12/31/21 12/31/22 Amortized cost $410,100 Fair value $496,000 $541,400 $416,600 $484,600 $541,400 (a) Indicate whether the bonds were purchased at a discount or at a premium. Discount