The following information for key byscane bank: Interest income: $2,450 Interest expense: 1,500 Total assets 45,000 Secutity gains/losses 21 Earning assets 40,000 Total liabilities 38,000 Taxes paid 16 Shares conmon stock outstanding 4,000 Noninterest income 800 Noninterest expense 950 Provision for loan losses 250 Calculate: ROE ROA NIM net interest margin EPS earnings per share Net non interest margin Net operating margin.