Final answer:
To calculate the book value of common stock on a specific date, you need to know the number of shares, the par value per share, additional paid-in capital, and retained earnings. However, without these details, the exact book value cannot be determined.
Step-by-step explanation:
To determine the book value of the common stock account on December 31, you first need to know the original number of shares issued and the par value per share, along with any additional paid-in capital and retained earnings that may be applicable. If you have the total equity of the company, you can subtract preferred stock equity (if any) and divide the balance by the number of common shares outstanding to find the book value per share. However, since this specific information isn't provided, it is not possible to calculate the exact book value of the common stock without additional financial details from the company's balance sheet.