Problem # $3$ Inventory Analysis

A$.$ Yito's Candy Shop has a demand of $50,000$ units$/$year for a certain box of their candy, the ordering cost is $$5\mathrm{.}00$ per order, and the $5$ andling cost is $15\%$ of cost$/$unit$/$year$.$ Determine how many units should be ordered for Yito's Candy Shop if the unit cost was $$25.$

B$.$ How much safety stock should Yito's Candy Shop carry if she wants at least a $98\%$ service level?