The 2015 income statement for Duffy's Pest Control shows that depreciation expense was $202 million, EBIT was $514 million, and the tax rate was 30 percent. At the beginning of the year, the balance of gross fixed assets was $1,584 million and net operating working capital was $422 million. At the end of the year, gross fixed assets was $1,836 million. Duffy's free cash flow for the year was $427 million.

Calculate the end-of-year balance for net operating working capital.(Enter your answer in millions of dollars rounded to 1 decimal place.)