Benn Corp.'s December 31, 2015, balance sheet showed total common equity of $4,150,000 and 300,000 shares of stock outstanding. During 2016 , the firm had $550,000 of net income, and it paid out $150,000 as dividends. What was the book value per share at 12/31/16, assuming no common stock was either issued or retired during 2016?