The 2021 income statement for Duffy's Pest Control shows that depreciation expense was $201 million, EBIT was $512 million, and the tax rate was 30 percent. At the beginning of the year, the balance of gross fixed assets was $1,582 million and net operating working capital was $421 million. At the end of the year, gross fixed assets was $1,833 million. Duffy's free cash flow for the year was $425 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