help me solve earnings per share and return on common stockholder's equity

The stockholders' equity accounts of Riverbed Corp on January 1, 2025, were as follows. During 2025, the corporation hacizhe following transactions and events pertaining to its stockholders' equity. Feb. 1 Issued 15,000 shares of common stock for $90,000. Mar. 20 Purchased 3,000 additional shares of common treasury stock at $7 per share. Oct. 1 Declared a 7% cash dividend on preferred stock, payable November 1. Nov. 1 Paid the dividend declared on October 1. Dec. 1 Declared a $0,50 per share cash dividend to common stockholders of record on December 15, payable December 31,2 Dec. 31 Determined that net income for the year was $820,000. Paid the dividend declared on December 1. Calculate the payout ratio, earnings per share, and return on common stockholders' equity. (Note: Use the common shares outstanding on January 1 and December 31 to determine the average shares outstanding.) (Round answers to 2 decimal places for per unit and percentage, es. 17.50 or 17.50%.) Payout ratio % Earnings per share Return on common stockholders' equity %