Vaughn Corporation has the following shareholders' equity on December 31, 2021: $640000 Shareholders' equity Share capital $10 convertible preferred shares. 10,000 shares authorized, 5000 shares issued Common shares, no par value, 200,000 shares authorized, 90000 shares issued Total share capital Retained earnings Total shareholders' equity 1700000 2340000 455000 $2795000 If one preferred share is convertible into 10 common shares, how many common shares are issued when 420 preferred shares are converted? 42 420 4200