can anyone help me with the "annual return"??

Compute the total and annual returns on the described investment. Six years after buying 50 shares of XYZ stock for $40 per share, you sell the stock for $2800. The total return is 40 %. (Do not round until the final answer. Then round to one decimal place as needed.) The annual return is %. (Do not round until the final answer. Then round to one decimal place as needed.)