Please explain how you got your answer.

Botter Company had a beginning inventory of 200 units at a cost of $13 per unit on August 1. During the month, the following purchases and sales were made. Botter uses a periodic inventory system. Instructions Determine ending inventory and cost of goods sold under (a) FIFO, and (b) LIFO. (a) FIFO: Ending inventory =$ ; cost of goods sold = $ (b) LIFO: Ending inventory =$ ; cost of goods sold = $