Paldyl dpi Styles 11. . Jackson Grills has supplied the following information from its accounting records for the month of August. Direct labour cost $11,500 Purchases of raw materials 20,000 Factory depreciation 7,500 Advertising 10,000 Factory property taxes 6,500 Materials inventory, 8/1 1,250 Materials inventory, 8/31 2,500 Work-in-process inventory, 8/1 Work-in-process inventory, 8/31 1,500 Cost of goods manufactured 45,850 Sales revenue Executive salary cost 25,000 Finished goods inventory, 8/1 5,500 Finished goods inventory, 8/31 4,250 Operating income 67,900 Gross margin Solve for the missing amounts (?)