Marigold Corp. Inc. had a beginning inventory of 95 units of Product RST at a cost of $6 per unit. During the year, purchases were:

Feb. 20 605 units at $7

Aug. 12 410 units at $9

May 5 495 units at $8

Dec. 8 100 units at $10

Marigold Corp. uses a periodic inventory system. Sales totaled 1,485 units.

Determine the ending inventory and the cost of goods sold under each of the assumed cost flow methods (FIFO, LIFO, and average-cost). Prove the accuracy of the cost of goods sold under the FIFO and LIFO methods