Bramble Corp. December 31, 2020 balance sheet showed the following: 4% preferred stock, $200 par value $449,000 Common stock, $1 par value 570,000 Paid-in capital in excess of par value - preferred stock 62,000 Paid-in capital in excess of par value - common stock 8,850,000 Retained earnings 10,650,000 Treasury stock 159,880 The average cost of the treasury shares was $14 per share. Answer the following questions: (a) How many shares of common stock have been issued as of December 31, 2020? shares of common stock have been issued as of December 31, 2020