Please show all the calculations

Fill in the appropriate blanks for each of the independent situations below. Sales revenue Beginning inventory Net purchases Ending inventory Cost of goods sold Gross prot Operating expenses Income before taxes (Show me all the calculations please) Company A Company B Company C (a) 8 $343,400 $540,000 52,600 (d) 90,000 205,300 255,600 (g) 52,200 108,000 63,000 (b) (e) 43 7,000 75,300 128,000 (h) (c) 50,000 48,000 6,000 (f) (i)