Use the following to answer questions 30 - 35 Find the missing amounts: Net Sales COGS Gross profit Operating expense Operating income Case 1 $825,000 ? 365,000 230,000 ? Case 2 $777,500 425,600 ? 295,000 ? Case 3 2 510,600 405,400 ? 99,200 30.5 31.5 _For case 1, determine cost of goods sold For case 1, determine operating income (Include "-" if needed) For case 2, determine gross profit For case 2, determine operating income (include "" if needed) 325 33.5 34.5 For case 3, determine net sales 35.5 For case 3, determine operating expense