Refer to Practice 185. Assume that the options were issued on September 1 instead of being outstanding

Question:

Refer to Practice 18–5. Assume that the options were issued on September 1 instead of being outstanding throughout the year. Compute diluted earnings per share, assuming that
(1) The average stock price for the year and for the September 1–December 31 period was $4 and
(2) The average stock price for the year and for the September 1–December 31 period was $13.