During the current year, Acme Company reports sales of $$325,000$ and anderage sale period of $50$ days. The inventory balance is $$22,000$ at the beginning of the year and $$26,000$ at the end of the year. What is Acme's gross margin percentage? Round to one decimal place.

$46\mathrm{.}1\%$

$47\mathrm{.}6\%$

$52\mathrm{.}4\%$

$54\mathrm{.}6\%$

None of the above