Higgins Athletic Wear has expected sales of $22,500$ units a year, carrying costs of $$1\mathrm{.}50$ per unit, and an ordering cost of $$3\mathrm{.}00$ per order.

a$.$ What is the economic order quantity?

Economic order quantity $($EOQ$)$ units

b$-1.$ What is average inventory?

Average inventory units

b$-2.$ What is the total carrying cost?

Total carrying cost

$

c$.$ What is the total inventory cost?

Total inventory cost$

d$-1.$ Assume an additional $30$ units will be required as safety stock. What will the new average inventory be$?$

New average inventory units

d$-2.$ What will the new total carrying cost be$?$

New total carrying cost

$