Your firm uses a continuous review system and operates $52$ weeks per year. One of the SKUs has the following characteristics. Refer to the standard normal table for $z-$values.

$>$ Demand $($D$)=19,600$ units$/$year

$>$ Ordering cost $(S)=$$$\frac{30\mathrm{.}00}{?}$ order

$>$ Holding cost $(H)=$$$\frac{3\mathrm{.}75}{?}$ unit$/$year

$>$ Lead time $(L)=3$ week$($s$)$

$>$ Cycle$-$service level $=90\%$The item's economic order quantity is units. $($Enter your response rounded to the nearest whole number.$)$