The total cost to produce an item includes a setup fee of $⁢2,200 and $⁢12.25 per unit. A customer wants to keep the average production cost at $⁢15.00 per unit. The average production cost is the cost to produce a certain number of units, x , divided by the number of units. How many units, x , should the customer order to achieve this average cost per unit? Round to the nearest unit if necessary.