I am trouble with Weighted Average

Exercise 5-18 Allocating product cost between cost of goods sold and ending inventory: Multiple purchases LO 5-6 Cortez Company sells chairs that are used at computer stations. Its beginning inventory of chairs was 220 units at $48 per unit. During the year, Cortez made two batch purchases of this chair. The first was a 250-unit purchase at $53 per unit; the second was a 355-unit purchase at $55 per unit. During the period, it sold 540 chairs. Required Determine the amount of product costs that would be allocated to cost of goods sold and ending inventory, assuming that Cortez uses a FIFO b. LIFO. c. Weighted average. (Do not round intermediate calculations. Round your final answers to nearest whole dollar amount.) Answer is complete but not entirely correct. FIFO LIFO Weighted Average $ Cost of goods sold 27.660 S 29,330 O $ Ending inventory 0 x 15,675 14,005