During the current year, Armstrong Corporation reported net income of $18 million and EPS of $5.00 per share. The average number of common shares outstanding during the year was 3.6 million. The price of a share of its common stock was $2.50 at the beginning of the year and $5.00 at the end of the year. What is the companys price/earnings (P/E) ratio at the end of the year?

Price?earnings (P/E) ratio