Powell Company owns an 80% interest in Sauter, Inc. On January 1, 2016, Sauter issued $400,000 of 10-year, 12% bonds at a premium of $50,000. On December 31, 2021, 5 years after original issuance, Powell purchased all of the outstanding bonds for $390,000. Both firms use the straight-line method of amortization. What is the gain on retirement on the 2021 consolidated income statement?