Amanager 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. col1 time 0 1 2 3col2 price 145 175 175 175 col3 action buy 3 shares sell 1 share sell 1 share sell 1 sharea. calculate the time-weighted geometric average return on this portfolio. (do not round intermediate calculations. round your answer to 2 decimal places.)

b. calculate the time-weighted arithmetic average return on this portfolio. (do not round intermediate calculations. round your answer to 2 decimal places.)

c. calculate the dollar-weighted average return on this portfolio. (do not round intermediate calculations. round your answer to 2 decimal places.)