a)

Assume you purchased a share of stock for $80 on January 1, 2008 and sold the share of stock for $30 on December 31, 2012. If the stock paid no dividends what your average yearly growth rate?

(not -21.8 or -21.75)

b)

Assume you purchase a stock which grows at 10% the first year, 5% the second year and lost 2% the third year. What is your average annual growth rate?

(not 4.33 or 5.67)

c)

Assume you purchased a stock for $100 today and it went up by 90% in the first year and dropped by 50% the second year. Assume no dividends. What is your average annual growth rate?

(not -2.469 or -2.5)