You are the procurement manager of Tacy$$s$.$ The supplier offers a new style of classical bomber

jacket for the winter season. The purchase cost is $$200,$ and the selling price is $$500.$ You

consider offering a discount for unsold jackets at the end of the season. The discounted price is

$$150.$ The forecasted demand, D$,$ is normally distributed with a mean of $3,000$ units $(\backslash$mu $)$ and a

standard deviation of $700$ units $(\backslash$sigma $).$ Assume that the A$/$F ration is $1$