The unamortized discount will decrease by $499 at the end of first year and will be $1,750.
Interest expense = $5,247 ($65,582 × 0.08)
Coupon payment = $4,748 ($67,831 × 0.07)
Change in discount = $499 ($5,247 − $4,748)
Discount at the end of first year = $1,750 ($2,249 − $499)