A local jacket distributor expects to sell 9,000 black fleece jackets in a year. Assume that EOQ model assumptions are valid.

A local jacket distributor expects to sell 9,000 black fleece jackets in a year. Assume that EOQ model assumptions are valid. Each jacket costs $50, ordering cost is $100 per order, and holding cost is 1 dollar per jacket per month..

Suppose the supplier sells the product in boxes. Each box contains 25 jackets. What is the optimal order quantity? What is the corresponding annual inventory cost

note: please explain how you get every single number