please explain how you arrive to answer, thank you

A closed-end fund starts the year with a net asset value of $21. By year-end, NAV equals $22.00. At the beginning of the year, the fund is selling at a 2% premium to NAV. By the end of the year, the fund is selling at a 7% discount to NAV. The fund paid year-end distributions of income and capital gains of $2.40. Required: a. What is the rate of return to an investor in the fund during the year? (Do not round intermediate calculations. Round your answer to 2 decimal places.) b. What would have been the rate of return to an investor who held the some securities as the fund manager during the year? (Round your answer to 2 decimal places.)