On January 1, 2021, Headland Corp. had 463,000 shares of common stock outstanding. During 2021, it had the following transactions that affected the Common Stock account. February 1 March 1 May 1 June 1 October 1 Issued 118,000 shares Issued a 10% stock dividend Acquired 103,000 shares of treasury stock Issued a 3-for-1 stock split Reissued 63,000 shares of treasury stock (a) Determine the weighted average number of shares outstanding as of December 31, 2021. The weighted average number of shares outstanding