Because the raw material, it must be ordered before the view from Reorder point. To order raw materials, such as when the next time pork 2 kg, so today should order more pork, 5 kg.
The materials must be ordered from the Reorder point to the next as a raw material. The remaining two kilograms of pork, so today should order an additional five kilograms of pork.
Because before ordering materials that need to look from the point Reorder point to order next time as raw material When the meat left 2 kg so today should order pork more 5 kg.