4. A fabric manufacturer wants to determine the optimal stock needed for cutting on a children's product line. The production manager wants to determine the reorder point and order quantity for each item on the line. Clothing 78A201 is in constant demand throughout the year, with a total demand of 14,000 pieces, with a production rate of 2,000 per month. After cutting, sewing is done. The cost of preparing for cutting is 240,000 won, and the cost of maintaining one item for one year is 500 won. Since cutting and sewing take place in the same factory, cutting and sending to the sewing process is done immediately. Determine the inventory policy for cutting operations for clothing 78A201 products