If Brett reorders the figurines based on the economic order quantity, Brett's average inventory of porcelain figurines is 768 units.
The economic order quantity is computed as the square root of (2 x Annual Sales Unit (Demand) x Ordering Cost)/Carrying Cost
= square root of (2 x 30,000 x $800)/$25
= square root of 1,920,000
= 1,386 units
Average inventory = (Economic Order Quantity)/2 + Safety stock
= 1,386/2 + 75
= 693 + 75
= 768 units
Thus, Brett's Gift Box average inventory of porcelain figurines is 768.
Learn how to calculate average inventory and the use of economic order quantity here: https://brainly.com/question/5525521 and https://brainly.com/question/9068415 respectively.
Data:
Estimate sales units for next year = 30,000 porcelain figurines
Average per-unit carrying cost = $25
Per-order Ordering Cost = $800
Required safety stock = 75 figurines