Selected financial data from the September 30 year-end state.menis of Kosanka Company are.given below: Total assets $5 ,000,000 Long-term debt (12% interest rate) 750 ,000 Preferred stock, $100 par, 7% 800 ,000 Total stockholders' equity 3,100,000 Interest paid on long-term debt 90,000 Net income $ 470 ,000 Total assets at the beginning of the year were $4,800,000 ; total stockholders ' equity was $2,goo,OOO . There has been no change in preferred stock during the year . The company 's tax rate is 30%. Required: 1. Compute the return on total assets. (Round your answer to 1 decimal place. Omit the "%" sign in your response.) Return on total assets 2. Compute the return on common stockholders ' equity . ouml yuu