XYZ's stock price and dividend history are as follows:

Year	Beginning-of-Year Price				Dividend Paid at Year-End
2016	$	180			$	4
2017		200				4
2018		170				4
2019		180				4

b. What is the dollar-weighted rate of return? (Hint: Carefully 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. If your calculator cannot calculate internal rate of return, you will have to use trial and error.) (Round your answers to 4 decimal places. Negative amount should be indicated by a minus sign.)