The 2021 income statement for Duffy's Pest Control shows that depreciation expense was $199 million, EBIT was $508 million, and the tax rate was 30 percent. At the beginning of the year, the balance of gross fixed assets was $1,578 million and net operating working capital was $419 million. At the end of the year, gross fixed assets was $1,827 million. Duffy's free cash flow for the year was $421 million. Calculate the end-of-year balance for net operating working capital. (Enter your answer in millions of dollars rounded to 1 decimal place.) Net operating working capital million