Ray's Satellite Emporium wishes to determine the best order size for its best$-$selling satellite dish. Ray has estimated the annual demand for this model at $992$ units. His cost to carry one unit is $$109$ per year per unit, and he has estimated that each order costs $$23$ to place. Supposing a $$100$ discount on each order is given if orders are placed in quantities of $500$ or more. If orders are placed in quantities of $500,$ what is the total annual inventory cost $($not including purchase cost$)?$