1) Calculate the profit margin.

please show some work.

BANK OF AMERICA CORPORATION Income and Expense Dollar figures in thousands 31-Dec-18 31-Dec-17 3 Total interest income 57,533,000 50,570,000 4 Total interest expense 6,891,000 3,170,000 5 Net interest income 50,642,000 47,400,000 26,501,000 25,874,000 6 Total noninterest income Fiduciary activities 1,853,000 7 1,990,000 Service charges on deposit accounts 5,511,000 5,598,000 Trading account gains & fees 3,238,000 9 3,974,000 10 Additional noninterest income 14,979,000 14,983,000 11 Securities gains (losses) 47,000 202,000 36,605,000 36,851,000 12 Total noninterest expense Salaries and employee benefits Premises and equipment expense 13 17,438,000 17,683,000 14 4,667,000 4,600,000 Additional noninterest expense 14,568,000 15 14,500,000 16 Provision for loan and lease losses 3,257,000 37,281,000 3,319,000 33,104,000 17 Pre-tax net operating income 18 Appli 19 Income before extraordinary items 20 Discontinued operations (Extraordinary gains - net)* ,715,000 11,628 ome taxes 29,566,000 21,476,000 21 Net income attributable to noncontrolling interests 0 0 21,476,000 22 Net income attributable to bank and noncontrolling in 29,566,000 24 Cash dividends 26,445,000 22,475,000 25 Sale, conversion, retirement of capital stock, net 0 Note: Accounting change as of September 2016, Extraordinary Gains,Net now only includes Discontinued Operations Expense. BANK OF AMERICA CORPORATION Income and Expense Dollar figures in thousands 31-Dec-18 31-Dec-17 3 Total interest income 57,533,000 50,570,000 4 Total interest expense 6,891,000 3,170,000 5 Net interest income 50,642,000 47,400,000 26,501,000 25,874,000 6 Total noninterest income Fiduciary activities 1,853,000 7 1,990,000 Service charges on deposit accounts 5,511,000 5,598,000 Trading account gains & fees 3,238,000 9 3,974,000 10 Additional noninterest income 14,979,000 14,983,000 11 Securities gains (losses) 47,000 202,000 36,605,000 36,851,000 12 Total noninterest expense Salaries and employee benefits Premises and equipment expense 13 17,438,000 17,683,000 14 4,667,000 4,600,000 Additional noninterest expense 14,568,000 15 14,500,000 16 Provision for loan and lease losses 3,257,000 37,281,000 3,319,000 33,104,000 17 Pre-tax net operating income 18 Appli 19 Income before extraordinary items 20 Discontinued operations (Extraordinary gains - net)* ,715,000 11,628 ome taxes 29,566,000 21,476,000 21 Net income attributable to noncontrolling interests 0 0 21,476,000 22 Net income attributable to bank and noncontrolling in 29,566,000 24 Cash dividends 26,445,000 22,475,000 25 Sale, conversion, retirement of capital stock, net 0 Note: Accounting change as of September 2016, Extraordinary Gains,Net now only includes Discontinued Operations Expense