please help with accounting...thank you

Cox Corporation was organized on January 1, 2003, at which date it issued 100,000 shares of $10 par common stock at $15 per share. During the period January 1, 2003, through December 31, 2005, Cox reported net income of $450,000 and paid cash dividends of $230,000. On January 10, 2005, Cox purchased 8,000 shares of its common stock at $4 per share. On December 31, 2005, Cox sold 6,000 treasury shares at $12 per share. What is Cox's total stockholders' equity at December 31, 2005? Select one: $1, 720,000 $1, 704,000 $1, 688,000 $1, 760,000 $1, 680,000