Galaxy Co$.$ sells virtual reality $($VR$)$ goggles targeted to customers who like to play video games. Galaxy procures each pair of goggles for $$150$ from its supplier and sells each pair of goggles for $$300.$ Monthly demand for the VR goggles is a normal random variable with a mean of $210$ units and a standard deviation of $52\mathrm{.}5$ units. At the beginning of each month, Galaxy orders enough goggles from its supplier to bring the inventory level up to $190$ goggles. If the monthly demand is less than $190,$ Galaxy pays $$20$ per pair of goggles that remains in inventory at the end of the month. If the monthly demand exceeds $190,$ Galaxy sells only the $190$ pairs of goggles in stock. Galaxy assigns a shortage cost of $$40$ for each unit of demand that is unsatisfied to represent a loss$-$of$-$goodwill among its customers. Management would like to use a simulation model to analyze this situation.