Superior has provided the following information for its recent year of operation: The common stock account balance at the beginning of the year was $20,000 and the year-end balance was $25,000. The additional paid-in capital account balance increased $2,500 during the year. The retained earnings balance at the beginning of the year was $75,000 and the year-end balance was $91,000. Net income was $26,000. How much did Superior sell its common stock for during the year?