Sales $ $170,000$ $ $950,000$ $ $58,000$ $ $277,000$

Sales discounts $5,00022,0006005,400$

Sales returns and allowances $16,0006,0005,9002,300$

Cost of goods sold $98,340585,47039,655129,264$

$($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?