You have calculated the EOQ for an item and determined that you should order in quantities of $18,900$ units. Annual demand for this item is $326,904.$ The purchase price for the item is $$6\mathrm{.}37$ per unit. Your supplier would like to ship full truckloads and has offered a discount of $2\%$ if you increase your order to a full truckload. The holding cost for this unit is $30\%$ of the purchase price per unit per year. If you agree to the larger shipping quantity, what will be the holding cost per unit?