FGH Inc had 500,000 shares of common stock issued and outstanding at December 31, 2010. On July 1, 2011, an additional 100,000 shares of common stock were issued for cash. FGI also had unexercises stock options to purchase 75,000 shares of common stock at $10 per share outstanding at the beginning and end of 2011. The average market price of FGI's common stock was $15 during 2011. What is the number of shares that should be used in computing diluted earnings per share for the year ended December 31, 2011