Average daily demand $325$ cases per day

Standard deviation of daily demand $95$ cases per day

Average Lead Time $2$ days $($constant$)$

Inventory holding cost $20\%$ of the item's value per year

Purchase Price $$50$ per case

Order Cost $$10$ per order

Stockout Cost $$35$ per case

Desired Service Level $80\%$

Assume the company operates $365$ days per year

What should the level of safety stock be for this item to meet the desired service level assuming lead time is always $2$ days and the z$-$score for a service level of $80\%$ is $0\mathrm{.}84?$