A year ago, an investor bought $500$ shares of a mutual fund at $$7\mathrm{.}56$ per share. This year, the fund has paid dividends of $$0\mathrm{.}75$ per share and had a capital gains distribution of $$0\mathrm{.}45$ 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{.}29.$

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\mathrm{.}85$ per share.

a$.$ Given that this no$-$load fund now has a net asset value of $$8\mathrm{.}29,$ the investor's holding period return is

$\%.$

$($Round to two decimal places.$)$