Question - Compute Net Operating Assets

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

$ millions Jan. 31, 2016 Feb. 01, 2015

Operating assets $40,333 $38,223

Non-operating assets 2,216 1,723

Total assets 42,549 39,946

Operating liabilities 14,918 13,427

Non-operating 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

Required - Compute net operating assets for the years ended January 31, 2016 and February 1, 2015.