MRP glossary TOP > Material Planning > Available Stock
Available Stock
It refers to the inventory quantity available for each period. In MRP list, the existing inventory is displayed at the left of the Period 1, as shown in the figure below. The available stock is calculated by means of the following formula:
Available Stock (t) = Available Existing Stock (t - 1) + Released Order (t) - Gross Requirements (t)
t: period
In the figure, the available stock is obtained by considering the quantity of Released Order and the existing inventory in response to the demand of Product X and Z as well as Service Parts a. For Period 1, the available stock (37) is calculated by removing the total requirements (27) from the total quantity (64) of the existing inventory (14) and the leased orders (50).
Reference:JIT Business Research Mr. Hirano Hiroyuki