Nuthatch Company produces bird houses. During the current year, Nuthatch incurred the following costs: Factory supervisor's salary $ 50,000 Sales department salaries 80,000 Wages of factory machine operators 95,000 Depreciation on manufacturing equipment 120,000 Depreciation on accounting department's compters 20,000 Direct materials purchased and used 15,000 Based on the above information, the amount of period costs shown on Nuthatch's income statement is: