You have the following information on stock ABC. Assume that the stock pays no dividends. Year Beginning of Year Price # of Shares Bought or Sold 2017 $28 40 bought 2018 $30 160 bought 2019 $33 120 sold 2020 $32 80 sold What is the dollar weighted average return in % for the entire period? -2.10% 4.55% -4.02% -5.41% 6.30%