The following data has been collected about Keller Company's stockholders' equity accounts: Common stock $10 par value 10,000 shares authorized and 5,000 shares issued, 3,000 shares outstanding Paid-in capital in excess of par value, common stock Retained earnings Treasury stock $50,000 40,000 15,000 31,200 15 Assuming the treasury shares were all purchased at the same price, the number of shares of treasury stock is