Inventory is material or good stored to be used to fulfill a specific purpose. Inconstant inventory will affect the inventory cost and products reorder or replenishment. Replenishment was an attempt by the company to hold an ordering to suppliers for the purpose of storing inventory. Therefore we need an analysis to determine the inventory optimization in the form of time and the replenishment quantity so the total inventory cost can be minimized as possible. Calculations for inventory ptimization with non-linear demand/sales model can use the consecutive method developed by Wang (2002) and Silver Meal method. The case studies in this study conducted of Malang apples inventory at X Hypermarket. The purposes of this study were to compare the inventory cost of Malang apple at X Hypermarket with the optimization results using the consecutive method and Silver Meal method; determine the quantity and frequency of Malang apple orders at X Hypermarket.