At Cost At Retail Inventory, February 1, 2020 $89,550 $99,500 Markdowns 35,000 Markups 63,500 Markdown cancellations 20,500 Markup cancellations 9,300 Purchases 223,500 293,000 Sales revenue 330,000 Purchases returns and allowances 4,700 6,200 Sales returns and allowances 9,100 Compute the ending inventory at cost as of January 31, 2021, using the retail method which approximates lower of cost or market.