Selected balance sheet and income statement information for Home Depot follows.

$ millions	Jan. 31, 2016	Feb. 01, 2015
Operating assets	$40,333	$38,223
Nonoperating assets	2,216	1,723
Total assets	42,549	39,946
Operating liabilities	14,918	13,427
Nonoperating liabilities	21,315	17,197
Total liabilities	36,233	30,624
Total stockholders' equity	6,316	9,322
Sales	88,519
Net operating profit before tax (NOPBT)	11,774
Nonoperting expense before tax	753
Tax expense	4,012
Net income	7,009

Compute return on net operating assets

Use ROE and RNOA to determine the nonoperating return for the year

Disaggregate RNOA into components of profitability and productivity and show that the product of the two components equals RNOA ( Net operating profit margin, Net operating asset turnover, and Return on net operating assets)