Given the following ratio relationships:

$$ S$/$A $=6\mathrm{.}6$

$$ N$/$S$=5\mathrm{.}2\%$

$$ D$/$A $=38\mathrm{.}8\%$

$$ A $=$ D $+$ E

What is N$/$E$?($Record your answer to a percent, rounded to $1$ decimal place$)$