Please solve for A. and B.

A year ago, an investor bought 500 shares of a mutual fund at $7.58 per share. This year, the fund has paid dividends of $0.75 per share and had a capital gains distribution of $0.55 per share. a. Find the investor's holding period return, given that this no-load fund now has a net asset value of $8.15. b. Find the holding period return, assuming all the dividends and capital gains distributions are reinvested into additional shares of the fund at an average price of $7.84 per share. a. Given that this no-load fund now has a net asset value of $8.15, the investor's holding period return is %. (Round to two decimal places.)