Boyne Inc. had beginning inventory of $18,000 at cost and $20,900 at retail. Net purchases were $131,590 at cost and $181,700 at retail. Net markups were $11,100; net markdowns were $8,200; and sales revenue was $158,900. Compute ending inventory at cost using the conventional retail method. (Round ratios for computational purposes to 0 decimal places, e.g. 78% and final answer to 0 decimal places, e.g. 28,987.)