Presented below is a bond-investment amortization schedule for New York Company with related fair values provided. These bonds are classified as available-for-sale; they were purchased on 1/1/10.

Were these bonds purchased at a premium or discount, and was the value of the FVA account a debit or credit on 12/31/12?

12/31/10 12/31/11 12/31/12

Amortized Cost 491,150 519,442 550,000

Fair Value 485,300 509,000 539,000