Pina Colada Inc. had beginning inventory of $21,000 at cost and $30,400 at retail. Net purchases were $156,399 at cost and $223,000 at retail. Net markups were $10,700, net markdowns were $7,000, and sales were $182,000. Calculate the ending inventory at cost using the retail method. (Round cost-to-retail ratio to 2 decimal places, e.g. 15.21% and the final answer to 0 decimal places, eg. 5,275.) Ending inventory 5,181.90