Kayla invested $3,000 and purchased shares of a German corporation when the exchange rate was $1.00 = .70 euro. After six months, she sold all of the shares for 3,180 euros, when the exchange rate was $1.00 = .65 euro. No dividends were paid during the time Kayla owned the shares of stock. What is the amount of Kayla's percentage return on this investment in terms of euros