Mr. David Smart just sold 100 shares of Nestl, a Swiss firm, for SF5,080 per share. The shares were bought for SF4,600 per share a year ago. The exchange rate is SF1.60 per U.S. dollar now and was SF1.78 per dollar a year ago. Mr. Smart received SF120 as a cash dividend per share immediately before the share was sold. Compute the rate of return on this investment in terms of U.S. dollars and show your detailed calculations.