Tom decides to begin investing some portion of his annual bonus, beginning this year with $6,000. In the first year he earns a 8% return and adds $3,000 to his investment. In the second his portfolio loses 4% but sticking to his plan, he adds $1,000 to his portfolio. In this year his portfolio returns 2%. What is Tom's dollar-weighted average return on his investments? 1.20 percent 0.34 percent 2.23 percent 1.54 percent 2.58 percent