Assume that at the beginning of the year, you purchase an investment for $5,500 that pays $110

Question:

Assume that at the beginning of the year, you purchase an investment for $5,500 that pays $110 annual income. Also assume the investment's value has increased to $6,400 by the end of the year.
a. What is the rate of return for this investment?
b. Is the rate of return a positive or negative number?