Lindsey invested her savings in shares of her brother's engineering company. The value of the shares that she owned dropped by $1.25 at the end of the first year, and a further $2.50 at the end of the second year. If the price of the share at the end of the second year was $12.55:

a. Calculate the percent change in the price of the share each year.

b. What was the percent drop in the price over the two-year period?AppendixLO1