What is the most economic quantity for the business to order at a time (rounded to the nearest unit)?

De Nuidated. Clear my choice Questions 10 and 11 refer to the following scenario: Sports Cover- Ups CC is in the business of selling supporters shirts for cricket, rugby and soccer, and they feel that their inventory management and costs are not as efficient as they could be. As they cover three sporting codes, their sales are relatively stable, and they sell 4,000 units a month. They sell each shirt for R300, which is a 50% markup on the purchase price per unit. Their supplier charges them a fixed fee of R80 every time they place an order for more stock, and their carrying costs average out at 12% of inventory value