Annual purchase cost?

Let's return to the class example. My cleaning company uses 12,000 rolls of paper towels annually. I pay S6 per order in ordering cost. Annual per-roll inventory carrying cost is 10% of the unit cost. Each roll costs $2; thus, the annual per-roll inventory carrying cost is $.20. if I place an order for 1,000 rolls each month, the total annual ordering cost and inventory carrying cost is $172. Assume 360 days per year. a. What is my annual purchase cost of the 12,000 rolls? Place your answer in the box below. Show your work, else, no credit. Yup, it's that easy. Total annual purchase cost of the 12,000 rolls - $