Stuart Company calculated its retum on investment as 10 percent. Sales are now $450,000, and the amount of total operating assets is $470,000 Required a. If expenses are reduced by $47,000 and sales remain unchanged, what retum on investment witl result? Note: Round your percentage answer to 2 decimal places. (i.e., 0.2345 should be entered as 23.45). b. If both sales and expenses cannot be changed, what change in the amount of operating assets is required to achieve the same resilt? Note: Do not round intermediate calculations. Round your final answer to the nearest whole doliar amount