fill in amounts that are missing

2018 2019 2020 Sales $ $289,000 $416,000 Sales returns 6,000 13.800 Net sales 346.000 Beginning inventory 20,100 32,600 Ending inventory Purchases 265,000 305,000 Purchase returns and allowances 5,400 74700 11,000 Transportation in 8.800 9,600 12.100 Cost of goods sold 242.000 299,000 Gross profit on sales 41.000 92.000 96,500