Selected balance sheet and income statement data follow for Staples, Inc. (in millions). Use the data to calculate a) return on net operating assets (RNOA), b) net operating profit margin (NOPM), and c) net operating asset turnover (NOAT) for fiscal 2015.

2015 Revenues	2015 NOPAT	2015 Operating assets	2015 Operating liabilities	2014 Net operating assets
$18,764	$556	$8,337	$3,286	$5,796