Marvalo Gaunt's Jewelry Shoppe has the following data for the year 2021 Cost $ 204,120 592,920 Beginning inventory Net purchases Net markups Net markdowns Net sales Retail $324,00 943,200 61,200 32,400 891,000 Estimate ending inventory (at cost) and cost of goods sold using each of the retail inventory methods specified. Average Conventional LIFO Estimate ending inventory at cost and cost of goods sold using the average cost retail inventory method. Ending Inventory (at cost) Cost of Goods Sold