Assume that at the beginning of the year, you purchase an investment for $4,150 that pays $114 annual income. Also assume that the investment's value has increased to $4,600 at the end of the year. (a) What is the rate of return for this investment? (Enter your answer as a percent rounded to 2 decimal places.) Rate of return % (b) is the rate of return a positive or negative number? Positive O Negative