Please solve this

In its first month of operations, Blossom Company made three purchases of merchandise in the following sequence: 200 units at $6; 250 units at $5; and 300 units at $4. There are 400 units on hand at the end of the period. Blossom uses a periodic inventory system. Your answer is incorrect. Calculate the cost of the ending inventory and cost of goods sold under FIFO FIFO Ending inventory Cost of goods sold