Two investment centers at Marshman Corporation have the following current-year income and asset data: Investment center income Investment center average invested assets Investment Center A $ 415,000 $2,400,000 Investment Center B $ 525,000 $1,950,000 The return on investment (ROI) for investment Center A is: Saved Multiple Choice 578.3% 241% 17.3% 39.2% 19.15 Marks Corporation has two operating departments, Drilling and Grinding, and an office. The three categories of office expenses are allocated to the two departments using different allocation bases. The following information is available for the current period Office Expenses Salaries Depreciation Advertising Total $30,000 20,000 40,000 Allocation Basis Number of employees Cost of goods sold Net sales Item Number of employees Net sales Cost of goods sold Drilling 1,000 $325,000 $ 75,000 Grinding 1,500 $475,000 $125,000 Total 2,500 $800,000 $200,000 The amount of depreciation that should be allocated to Grinding for the current periodis: Multiple Choice $20.000. $25,000. $7.500. $12,500. $40,000