QS $4-23($Static$)$ Computing and analyzing gross margin ratio LO A$1$

Carrier Lennox Trane York

Sales $ $150,000$ $ $550,000$ $ $38,700$ $ $255,700$

Sales discounts $5,00017,5006004,800$

Sales returns and allowances $20,0006,0005,100900$

Cost of goods sold $79,750329,58924,453126,500$

$($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?