Applying the Cost of Goods Sold Model

Shippington Sales sells a single product. At the beginning of the year, Shippington had 120 units in stock at a cost of $4 each. During the year, Shippington purchased 850 more units at a cost of $4 each and sold 210 units at $13 each, 250 units at $15 each, and 360 units at $14 each.

Required:

1.  Using the cost of goods sold model, what is the amount of ending inventory and cost of goods sold?

Cost of goods sold
Ending inventory	$

2.  What is Shippington's gross margin for the year?
$