Magnom company has net income of $$63,230$ and cost of goods sold of $$25,730.$ Its net sales is $$52,160.$ What is Magnom's gross margin ratio:

a$.75\mathrm{.}00\%$

b$.65\mathrm{.}55\%$

c$.50\mathrm{.}67\%$

d$.35\mathrm{.}95\%$

e$.29\mathrm{.}16\%$