M3-21. Compute Net Operating Profit after Tax Refer to the income statement information for Home Depot, from M3-18. Compute net operating profit after tax for the year ended January 31, 2016. Assume a statutory tax rate of 37%. $ millions Jan. 31, 2016 Feb. 01, 2015 Operating assets Nonoperating assets Total assets. $40,333 2,216 42,549 $38,223 1,723 39,946 Operating liabilities. Nonoperating liabilities. Total liabilities. 14,918 21,315 36,233 13,427 17,197 30,624 Total stockholders' equity 6,316 9,322 Sales... Net operating profit before tax (NOPBT) Nonoperating expense before tax Tax expense . Net income. 88,519 11,774 753 4,012 7,009