(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? Complete this question by entering your answers in the tabs below. Required A Required B Compute net sales, gross profit, and the gross margin ratio for each of the four separate companies. Note: Round your gross margin ratio to 1 decimal place, i.e., 0.2367 should be entered as 23.7%. Carrier Trane York Net sales Gross profit Gross margin ratio Lennox < Required A Required B > Sales Sales discounts Sales returns and allowances Cost of goods sold Carrier $ 165,000 4,000 17,000 95,760 Lennox $ 850,000 19,500 6,000 507,892 Trane $ 53,000 600 5,400 36, 190 York $ 272,000 4,900 1,800 129,997