On January 1, 2018, Pet Friendly Stores adopted the retail inventory method. Inventory transactions at both cost and retail, and cost indexes for 2018 and 2019 are as follows: 2018 2019 Retail $105,400 $170,000 430,000 622,000 4,000 Cost Cost Retail Beginning inventory Purchases Purchase returns Freight-in Net markups Net markdowns Net sales to customers Sales to employees (net of 20% discount) Normal spoilage Price Index: $630,000 $792,000 2,450 2,900 6,200 2,600 6,000 5,150 4,150 500,000 14,400 1,900 8,600 6,400 690,000 14,400 5,300 January 1, 20118 December 31, 2018 December 31, 2019 1.00 1.04 1.20 Required 1. Estimate the 2018 and 2019 ending inventory and cost of goods sold using the dollar-value LIFO retail method 2. Estimate the 2018 ending inventory and cost of goods sold using the average cost retail method 3. Estimate the 2018 ending inventory and cost of goods sold using the conventional retail method