The following information is available for Cosmic Corporation for the year ended December 31, 2019:

CostRetail

Beginning inventory$5,500$20,000

Purchases82,500125,000

Purchases returns3,000 4,200

Freight-in5,000

Additional markups16,742

Additional markup cancellations 5,000

Markdowns 3,542

Markdown cancellations 1,000

Sales125,000

Sales returns 5,000

(a)Calculate the estimated ending inventory at cost, using the retail method - average cost basis without LCNRV. (round your cost ratio to a maximum of 3 decimal places)

(b)Calculate the estimated ending inventory at cost, using the retail method - FIFO basis, with LCNRV. (round your cost ratio to a maximum of 3 decimal places)

(c)Assuming that the gross margin has averaged 35% of net sales over the past 3 years, calculate the estimated ending inventory at cost, using the gross margin method.

(Please remember to not use the "retail values" for anything other than "Sales" and "Sales Returns" when applying the gross margin method!)