Inventory by Three Methods; Cost of Goods Sold

The units of an item available for sale during the year were as follows:

Jan. $1$ Inventory $20$ units at $$1,800$

May $15$ Purchase $31$ units at $$1,950$

Aug. $7$ Purchase $11$ units at $$2,040$

Nov. $20$ Purchase $15$ units at $$2,100$

There are $19$ units of the item in the physical inventory at December $31.$

Determine the cost of ending inventory and the cost of goods sold by three methods, presenting your answers in the following form:

Round your final answers to the nearest dollar.

Cost