The details of total equity as of December 31, 2022 of Konkuk Co., Ltd., which has been manufacturing and selling Konkuk ham since 2020, are as follows.

1) 1,000 won of common share capital

2) Preferred stock capital: KRW 500

3) 400 won for common stock issuance excess

4) Preferred stock issuance excess of KRW 100

5) Retained earnings of KRW 300

2. Capital-related stocks were issued at the time of company establishment in 2020, and there have been no transactions or changes in stocks since establishment.

3. The company paid only KRW 500 in dividends to shareholders while operating until December 31, 2022.

(Question 1) Explain the meaning of the stock issue excess.

(Question 2) How much money did you receive from issuing stock when the company was established?

(Question 3) What is the total net profit of the company from establishment in 2020 to December 31, 2022?

(Question 4) Even if the company executes a bonus issue of 200 won on November 18, 2022, using the excess issuance of common stock as financial resources, there is no change in the total equity. Please explain why.