York Trane Carrier Lennox $ 168,000 $ 910, 000 $56,000 275,000 21,000 6,000 542,162 Sales Sales discounts 5,200 1,300 129,954 2,000 20,000 96,652 600 Sales returns and allowances 5,700 36,778 Cost of goods sold Compute net sales, gross profit,, and the gross margin ratio for each of the four separate compam margin ratio to 1 decimal place; i.e.; 0.2367 should be entered as 23.7 %.) Carrier Lennox Trane York Net sales Gross profit Gross margin ratio