Sexton Inc. uses a perpetual inventory system. Inventory costs are determined using the last in, first out (LIFO) method. On June 2, 39 units were purchased at $19 per unit. On June 5, 24 units were purchased at $14 per unit. On June 15, 26 units were sold at $53 per unit. On June 18, 29 units were purchased at $15 per unit. The units sold on June 15 had a cost of goods sold of $ . (Do not input a comma or cents.)