Using the trial balance below, how should I record an adjusting entry for:

Interest on the mortgage payable has not been recorded

17. The trial balance of Davao Corporation at the end of its operation for 2014 is given below: DAVAO CORPORATION TRIAL BALANCE December 31, 2017 Cash P 180,000 Accounts Receivable 450,000 Estimated Uncollectible Accounts P P23,000 Inventory, January 1 220,000 Investment in Available for Sale Pepsico Shares 200,000 Land 800,000 Building 350,000 Accumulated Depreciation, Building 35,000 Furniture & Equipment 210,000 Accumulated Depreciation, Furniture & Equipment 42,000 Accounts Payable 380,000 Ten-Year Mortgage Payable (18% payable P25,000 250,000 every January 1) 12% Preference Share Capital, par P100 400,000 Ordinary Share Capital - par P100 800,000 Share Premium - Ordinary 80,000 Unrealized Gain on Revaluation of Land 20,000 150,000 Treasury Shares - Ordinary, 100 shares Retained Earnings -303,800 Sales 3,800,000 Sales Discounts 94,000 Purchases 3,446,000 Purchase Discounts 171,200 Freight-In 24,000 Office Salaries 36,000 Sales Salaries 72,000