The $2018$ income statement for Duffy$$s Pest Control shows that depreciation expense was $$197$ million, EBIT was $$440$ million, and the tax rate was $21$ percent. At the beginning of the year, the balance of gross fixed assets was $$1,562$ million and net operating working capital was $$417$ million. At the end of the year, gross fixed assets was $$1,803$ million. Duffy$$s free cash flow for the year was $$424$ million. Calculate the end$-$of$-$year balance for net operating working capita