XYZ stock price and dividend history are as follows: Year Beginning-of-Year Price Dividend Paid at Year-End 2016 $124 $4 2017 $135 $4 2018 $115 $4 2019 $120 $4 An investor buys six shares of XYZ at the beginning of 2016, buys another two shares at the beginning of 2017, sells one share at the beginning of 2018, and sells all seven remaining shares at the beginning of 2019.

a. What are the arithmetic and geometric average time-weighted rates of return for the investor? (Do not round intermediate calculations. Round your answers to 2 decimal places.)

b-1. Prepare a chart of cash flows for the four dates corresponding to the turns of the year for January 1, 2016, to January 1, 2019. (Negative amounts should be indicated by a minus sign.)

b-2. What is the dollar-weighted rate of return? (Negative value should be indicated by a minus sign. Round your answer to 4 decimal places.)