A year ago, an investor bought $100$ shares of a mutual fund at $$7\mathrm{.}64$ per share. This year, the fund has paid dividends of $$0\mathrm{.}71$ per share and had a capital gains distribution of $$0\mathrm{.}52$ per share.

a$.$ Find the investor's holding period return, given that this no$-$load fund now has a net asset value of $$8\mathrm{.}13.$

b$.$ Find the holding period return, assuming all the dividends and capital gains distributions are reinvested in additional shares of the fund at an average price of $$7\mathrm{.}76$ per share.

a$.$ Given that this no$-$load fund now has a net asset value of $$8\mathrm{.}13,$ the investor's holding period return is $\%.($Round to two decimal places.$)$