Final answer:
Using the EOQ formula and given data, the value of the ordering cost for Laughton Lavender's law office to optimally order 60 units at a time would be $30.
Step-by-step explanation:
To find the value of ordering cost that would make ordering 60 units at a time optimal for Laughton Lavender's law office, we need to use the Economic Order Quantity (EOQ) formula:
EOQ = √((2DS) / H), where D is the demand rate, S is the ordering cost, and H is the holding cost per unit per year. From the question, we know that D = 240 units/year, H = 40% of the $10 unit cost which is $4 per unit per year, and EOQ is given as 60 units. By substituting these values into the EOQ formula, we can solve for the ordering cost S.
60 = √((2 * 240 * S) / 4), which simplifies to 3600 = (480S) / 4. Multiplying both sides by 4 and then dividing by 480 gives us S = $30.
Therefore, if Laughton Lavender's law office's ordering cost were $30, ordering 60 units at a time would be the optimal strategy.