Compute Tandy's 2020 return on common stockholders' equity. (Round answer to 1 decimal place, e.8. 15.2\%.) Return on common stockholders' equity Daniel Tandy Company reported the following balances at December 31,2019: common stock $505,000; paid-in capital in excess of par-common stock $210,000; retained earnings $380,000. During 2020 , the following transactions affected stockholder's equity. 1. Issued preferred stock witha par value of $200,000 for $230,000. 2. Purchased treasury stock (common) for $74,000. 3. Earned net income of $255,000. 4. Declared and paid cash dividends of $79,000 (\$15,410 preferred)