Problem
Jack is planning on selling moon cake in Moon Festival. The cost of a moon cake is $2.5 and Jack can sell it for $5. After the Moon Festival, Jack has to reduce the price to $1.5. Jack forecast the demand to be normally distributed with mean of 200 and standard deviation of 40. Then solving for cost of ordering to many. Alos how many to order. Then periods and demands. W-W questions. Holding cost, total inventory, minimize and interval. Demand of scheduled receipt. Fixed cost etc.