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7) On January 1, 2015, Red Company issued an 8% callable bond which has a par value of $100,000 for $90,000. The bond is callable at 105 any time after January 1, 2020. The entire bond was called back on January 1, 2021 when the unamortized discount had a balance of $1,500. Compute the amount of the gain or loss when the bond was retired on January 1, 2021