A big box store sells a lawn mower. Annual demand for the lawn mower is $600$ units. The ordering cost per order of lawnmowers is $$20.$ The annual holding cost per unit is $$15.$ Assuming the store uses the EOQ as the order size, what would be the total annual ordering cost for the lawnmower? PLEASE WRITE ONLY THE TOTAL ORDERING COST WITHOUT $ sign in the box below.