Tan Corporation issued $600,000,000 of 7% bonds on November 1, 2015, for $644,636,000. The bonds were dated November 1, 2015, and mature in 10 years, with interest payable each May 1 and November 1. The effective-interest rate is 6%. Prepare Tan’s December 31, 2015, adjusting entry. Use effective rate method of amortization