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 Time Price Action O $ 135 Buy 3 Shares 1 165 Sell 1 Share 2165 Sell 1 Share 165 Sell 1 Share Required: a. Calculate the time weighted geometric average return on this portfolio (Do not round Intermediate calculations. Round your answer to 2 decimal places.) Geometric average return b. Calculate the time weighted arithmetic average return on this portfolio (Do not round Intermediate calculations. Round your answer to 2 decimal places.) Arithmetic average return % c. Calculate the dollar-weighted average return on this portfolio (Do not round Intermediate calculations. Round your answer to 2 decimal places.) Dollar-weighted average return