The following abstract of certain ledger balances have been provided from a company's budget: Cost of goods sold expense 1,605 Finished Goods - Closing balance 105 Fixed manufacturing overhead applied 185 Gross Profit 1,095 Materials - Closing balance 90 Materials - Opening balance 100 Materials - Used 375 Operating income 510 Period Costs 585 Revenue 2,600 Total manufacturing costs incurred 1,610 Total manufacturing overhead costs 500 Work in Process - Closing balance 210 Work in Process - Opening balance 200