Use the following to answer questions 30 35 Find the missing amounts: Case 1 Case 2 Case 3 Net Sales COGS $800,000 $750,000 ? ? 400,000 425,000 Gross profit 370,000 ? 325,000 Operating expense 220,000 295,000 ? Operating income ? ? 88,000 30. $ _For case 1, determine cost of goods sold _For case 1, determine operating income 32. $ 33. $ 31. $ (include "_" if needed) For case 2, determine gross profit For case 2, determine operating income (include if needed) 34. $ For case 3, determine net sales 35. $ For case 3, determine operating expense