Pandora Corporation operates several factories in the Midwest that manufacture consumer electronics. The December 31, 2024, year- end trial balance contained the following income statement items: Account Title Sales revenue Interest revenue Loss on sale of investments Cost of goods sold Selling expenses General and administrative expenses Interest expense Research and development expense Income tax expense Required: Calculate the company's operating income for the year. Operating revenues: Debits $ 104,000 6,240,000 624,000 1,560,000 44,000 1,240,000 904,000 Credits $ 12,900,000 $4,000 Total operating revenue Less operating expenses Total operating expenses Operating income 0