SZA Inc. has the following inventory transactions for the month of March 2023 (assume there is no beginning balance): 

March 1. Purchased Inventory (100 units for $4) 

March 3. Purchased Inventory (200 units for $5) 

1. March 9. Sold Inventory (150 units) 

Using the FIFO Method (assuming there is a periodic inventory system in place), what is the Cost of Goods Sold amount for the month of March 2023?