please help me!!! thank you!

Brief Exercise 9-12 Vaughn Inc. had beginning inventory of $12,285 at cost and $19,500 at retail. Net purchases were $124,773 at cost and $168,900 at retail. Net markups were $9,900, net markdowns were $6,700, and sales revenue was $145,500. Compute ending inventory at cost using the LIFO retail method. (Round ratios for computational purposes to 1 decimal place, e.g. 78.7% and final answer to 0 decimal places, e.g. 28,987.) Ending inventory using LIFO retail method