Got b and d wrong. Please Help

Exercise 9-19 Your answer is partially correct. Try again. Presented below is information related to Marin Corporation for the current year $596,100 Beginning inventory Purchases 1,522,700 Total goods available for sale $2,118,800 Sales revenue 2,590,000 ming that (a) gross profit is 45% of sales, (b) gross profit is 60% of cost, (c) gross profit is 37% of sales, and (d) gross profit te the ending Inverntory, assumutational purposes to 1 decimal place, e.g. 78. 7% and final answers to 0 decimal places, e.g. 28,987.) 25% of cost. (Round ratios fo Ending Inventory 694300 (a) Gross profit is 45% of sales (b) Gross profit is 60 % of cost 800080 (c) Gross profit is 37% of sales 487100 (d) Gross profit is 25% of cost 58500