Diaz Corporation had the following information for its inventory for the year 2020:

Units Unit Cost

Beginning Inventory Jan 1 50 $13

Purchases Mar 1 30 17

Jun 1 40 15

Dec 1 80 18

A total of 90 units were sold during 2020.

Compute the cost of ending inventory and the cost of goods sold under each of the following methods and show all work for each answer:

Ending Cost of

Inventory Goods Sold

a) Weighted-Average Cost $ $

b) FIFO $ $

c) LIFO $ $