On December 1, 2012, Cole Corporation exchanged 15,000 shares of its $10 par value common stock held in treasury for a used machine. The treasury shares were acquired by Cole at a cost of $40 per share. On the date of the exchange, the common stock had a market value of $55 per share (the shares were originally issued at $30 per share). As a result of this exchange, Cole's total stockholders' equity will increase by a. $225,000. b. $600,000. c. $675,000. d. $825,000