Please show all work.

Pandora Corporation operates several factories in the Midwest that manufacture consumer electronics. The December 31, 2018, year- end trial balance contained the following income statement items: Account Title Debits Credits Sales revenue 13.600,e00 Interest revenue 61,000 Loss on sale of investments Cost of goods sold Selling expenses General and administrative expenses Interest expense Research and development expense 111,000 6,310,e0e 631,e0e 1,630,000 51,000 1,310,000 911,e00 Income tax expense Required: Calculate the company's operating income for the year Total operating revenue Less operating expenses