Assume the utility stocks you owned were purchased 2 years ago for $2,000. In year 1, these stocks paid quarterly dividends of $40, $45, $35, and $42. In year 2, the dividends paid were $20, $30, $28, and $22. All dividends were received in cash. If you were to sell the stocks for $2,800 at the time of the last dividend payment, what will have been the internal rate of return (IRR) for this investment?

*Please explain your answer clearly.