A manager buys three shares of stock today, and then sells one of those shares each year for the next 3 years. His actions and the price history of the stock are summarized below. The stock pays no dividends. Required: a. Calculate the time-weighted geometric average return on this portfolio. (Do not round Intermedlate calculatlons. Round your answer to 2 declmal pleces.) Answer is complete and correct. \begin{tabular}{|l|l} \hline Geometric average return & 3.23% \\ \hline \end{tabular} b. Calculate the time-weighted arithmetic average retum on this portfolio. (Do not round Intermedlote calculotlons. Round your answer to 2 decimol ploces.) c. Calculate the dollar-weighted average return on this portfolio. (Do not round Intermedlate calculations. Round your answer to 2 decimal places.)