Given data
 

Sales Sales discounts Salen returns and allowances Cost of goods sold Carrier Lennox $ 157,000 $ 690,000 4,000 15,500 6,000 15,000 92,874 426,503 Trane York $ 45,000 $264,000 600 4,600 30,646 3,900 600 131,307 (a) Compute net sales, gross profit, and the gross margin ratio for each of the four separate companies. (b) Which company has the better gross margin ratio?