On January 1, 2023, Wassel Corp. had 300,000 shares of common stock outstanding. During 2023, it had the following transactions that affected the common stock account. March 1 Issued 150,000 Shares July 1 Issued a 2-for-1 stock split October Acquired 300,000 share of 1 treasury stock Determine the weighted-average number of shares outstanding as of December 31, 2023.