Baked Potatoes has total annual sales of 846,000 units, a carrying cost per unit of $1.64 per year, and restocking costs of $31 per order. Each inventory item has an average cost of $2.39. What is the average dollar value of the firm's inventory if it always orders the most economical quantity?=

A) $6,758

B) $7,008

C) $7,409

D) $6,218

E) $6,411