The Schukter Company makes the following purchases and sales during August.

Aug $1$ Inventory $300$ units @ $$10=$ $$3,000$

Aug $5$ Purchases $120$ units @ $$11=$ $$1,320$

Aug $12$ Sales $160$ units

Aug $22$ Purchases $150$ units @ $$12=$ $$1,800$

Aug $25$ Sales $80$ units

REQUIRED : Compute the value of ending inventory and the cost of goods sold if the company uses:

a$)$ The periodic inventory system and the FIFO cost flow assumption.

b$)$ The periodic inventory system and the LIFO cost flow assumption.

Please show work for how to compute each. Thank you!