XYZ Company had 400,000 shares of $2 par value common stock authorized. As of December 31, 2010, there were 2000 shares issued and outstanding. The market value of XYZ's common stock on December 31, 2010 was $100 per share. The Board of Directors declared a five to four stock split on January 5, 2011 (a 25% increase in the number of shares).

How will the above stock split affect the number of authorized shares, the number of issued shares, the number of outstanding shares, and the par value per share?