Assume the that over the past couple of years your investment into a stock that pays no dividends was as follows:

Year	Starting price	Shares bought/sold
2010	49.1	50 bought
2011	55.2	100 bought
2012	50.6	150 sold

What is your dollar-weighted annual return for over this period for this investment?

Enter answer in percents, to two decimal places.

Extra: how does this compare to the average annual return, or the geometric average annual return?