Every organization adopt different type of system for inventory costing. organization adopt two basic costing system. Suppose there are two organization one is cooking oil corporation and other is printing press. Keeping in mind the concepts of costing system answer the following questions: Although the cost is find by adding DM,DL and FOH ,how the product cost determination will be different under these two corporation. Identify the type of costing system for both firms separately Calculation of unit cost.