A stock has the following prices and dividends. Year Price Dividend 1 25.55 2 28.64 1.50 3 27.47 1.69 4 30.30 1.37 Figures in the "Price" column are closing prices for each year; figures in the "Dividends" column are the dividend amounts received during the year. Suppose you buy the stock at the end of Year 1 and hold it until the end of Year 4. What is your arithmetic average annual return? Enter your answer in units of percent (not a decimal), round it to one decimal place, and omit any percent signs (i.e., enter -20.91% as 20.9)