Sales discounts Sales returns and allowances Cost of goods sold $159.000 3.000 17.000 93,269 $750,000 16.500 6.000 438,656 $47,000 600 4.800 12,448 $266,000 4.300 1,200 110,771 points Suipped Compute net sales, gross profit, and the gross margin ratio for each separate case a through d (Round your gross margin ratio to 1 decimal place;e.; 0.2367 should be entered as 23.7%) (a ) di je to Gross profit Gross margin ratio References