Final answer:
The basic earnings per share for Piper Corporation for the year ended December 31, 2011, is $3.08 per share.
Step-by-step explanation:
To calculate the basic earnings per share, we need to consider the net income and the number of shares outstanding. In this case, the net income for the year ended December 31, 2011, was $600,000.
To calculate the weighted average number of shares outstanding, we add the common stock shares and the converted preferred stock shares and the converted bonds shares, which gives us a total of 195,000 shares.
Dividing the net income by the weighted average number of shares will give us the basic earnings per share. Thus, $600,000 / 195,000 shares = $3.08 per share.