4. At December 31, 2020, the following balances existed for AAA Corporation: Bonds Payable (4%) $500,000 Discount on Bonds Payable 10,000 The bonds mature on 12/31/27. Straight-line amortization is used. If 30% of the bonds are retired at 105 on January 1, 2024, what is the gain or loss on early extinguishment? Answer $_______________ Required: Compute the answer for each of the four problems. Show supporting computation. No need to show questions.