At the beginning of the year, you purchased a share of stock for $50. Over the year the dividends paid on the stock were $2.80 per share.

a.Calculate the return if the price of the stock at the end of the year is $45.(Negative amount should be indicated by a minus sign. Round your answer to 2 decimal places. (e.g., 32.16))

b.Calculate the return if the price of the stock at the end of the year is $55.(Round your answer to 2 decimal places. (e.g., 32.16))