On January 1, 2021, Whispering Corp. had 480,000 shares of common stock outstanding. During 2021, it had the following transactions that affected the Common Stock account. Issued a 10% stock dividend February 1 Issued 117,000 shares March 1 May 1 June 1 Acquired 101,000 shares of treasury stock Issued a 3-for-1 stock split October 1 Reissued 62,000 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