Exercise 23-6 Grouper Company's income statement for the year ended December 31, 2017, contained the following condensed information. Service revenue Operating expenses (excluding depreciation) $630,000 Depreciation expense Loss on sale of equipment Income before income taxes Income tax expense Net income $839,000 59,000 26,000 715,000 124,000 40,000 $84,000 Grouper's balance sheet contained the following comparative data at December 31 2017 2016 Accounts receivable Accounts payable Income taxes payable $38,000 42,000 4,100 $56,000 31,000 8,000 (Accounts payable pertains to operating expenses.)