The following lots of a particular commodity were available for sale during the year Beginning inventory First purchase 12 units at $51.00 18 units at $50.00 Second purchase Third purchase 50 units at $59.00 16 units at $60.00 The firm uses the periodic system, and there are 28 units of the commodity on hand at the end of the year. What is the amount of inventory at the end of the year according to the LIFO method? Select the correct answer. $5,422.00 $1,668.00 $1,412.00 $1,428.00