Cost flow relationships The following information is available for the first year of operations of Creston Inc., a manufacturer of fabricating equipment: Sales $ 12,745,000 Gross profit 5,355,400 Indirect labor 422,200 Indirect materials 185,400 Other factory overhead 834,200 Materials purchased 4,248,300 Total manufacturing costs for the period 8,115,600 Materials inventory, end of period 298,700 This information has been collected in the Microsoft Excel Online file Open the spreadsheet, perform the required analysis, and input your answers in the questions below. This information has been collected in the Microsoft Excel Online file. Open the spreadsheet, perform the required analysis, and input your answers in the questions below X 1 Open spreadsheet Determine the following amounts Hound your answers to the nearest dollar a. Cost of goods sold b. Direct materials cost Direct labor cost