Article 6-7 one of the parties define the Base stock of 20000 price unit costs. 50 baht per unit and cost price method, the average price of goods excess Base stock
The acquisition of a defined product is 6-7 Base stock to 20,000 units cost 50 baht per unit and average cost methods of contracting the cost of the excess Base stock.
The utility of one set 6-7 product is Base stock a number, 20 000 unit cost per unit 50 baht. And use the average method in mounting cost of goods in excess of Base stock