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 Stockholder's Equity 6,316 9,322

Sales 88,519

Net Operating Profit Before Tax 11,774

Tax Expense 4,012

Net Income 7,009

1. Compute Return on Net Operating Assets
2. Use ROE and RNOA to determine the Non-operating return for the year
3. Disaggregate RNOA into components of profitability and productivity and show that the product of the two components equals RNOA (Find Net operating profit margin, Net operating asset turnover, and Return on Net Operating Assets).