The optimal order quantity is 11659 units.
What is the quantity?
To calculate the optimal order quantity, we can use the economic order quantity (EOQ) formula. The EOQ formula is:
EOQ = √((2AD) / (Ch))
In this case, we have:
A = $225
D = 145,000 units
C = $4
h = 0.12
Plugging these values into the EOQ formula, we get:
EOQ = √((2 * $225 * 145,000) / ($4 * 0.12))
EOQ = 11659 units
Therefore, the optimal order quantity is 11659 units