XYZ Inc. has the following inventory transactions for the month of January:

• January 1: Beginning Inventory of 500 units at a cost of $10 per unit.
• January 10: Purchased 1,000 units at a cost of $12 per unit.
• January 20: Sold 1,200 units for a total revenue of $27,000.
• January 25: Purchased 600 units at a cost of $15 per unit.
• January 30: Sold 1,000 units for a total revenue of $24,000.

Using the FIFO inventory method, what is the cost of goods sold and ending inventory for the month of January? Show all calculations.