242  Analyzing Performance Accurately evaluating ROIC with goodwill leads to a second challenge: ROIC may increase even without improvements to the underlying business. We’ve seen situations where a business unit submitted a new strategic plan saying it expected to improve its ROIC over time. On the surface, its forecast looked impressive, but we then discovered that the ROIC included goodwill, and the expected improvement in ROIC would be caused solely by goodwill remaining constant as the business grew profits organically. The management team would earn accolades for improving ROIC purely as a result of the ac- counting for goodwill, not an underlying improvement to the business. Decomposing ROIC to Develop an Integrated Perspective of Company Economics To show how we analyze a company’s economics based on decomposition of its ROIC, we return to the example of Costco and its peers. Costco has con- sistently earned a higher ROIC than its peers. But what caused this difference in performance? To understand which elements of a company’s business are driving the company’s ROIC, split apart the ratio as follows: ROIC Operating Cash Tax Rate EBITA Revenues Revenues Invest = − × × ( ) 1 ed Capital The preceding equation is one of the most powerful equations in financial analysis. It demonstrates the extent to which a company’s ROIC is driven by EXHIBIT 12.2  Tapestry: Return on Invested Capital % ROIC without goodwill ROIC with goodwill 2015 2016 2018 2017 2019 0 10 20 30 50 40 Analyzing Returns on Invested Capital  243 its ability to maximize profitability (EBITA divided by revenues, or the operat- ing margin), optimize capital turnover (measured by revenues over invested capital), or minimize operating taxes. Each of these components can be further disaggregated, so that each ex- pense and capital item can be analyzed, line item by line item. Exhibit 12.3 shows how the components can be organized into a tree. On the right side of the tree are operational financial ratios, the drivers of value over which managers have control. Reading from right to left, each subsequent box is a function of the boxes to its right. For example, operating margin equals 100 percent less the ratios of cost of sales to revenues, selling and general ex- penses to revenues, and other operating expenses to revenues. Pretax ROIC equals operating margin times capital turnover (revenues divided by invested capital), and so on. EXHIBIT 12.3  Costco versus Peer Group: ROIC Tree, 2018 % Costco 17.7 Peer group 11.6 ROIC with goodwill1 Costco 17.7 Peer group 12.8 ROIC without goodwill1 Costco 0.0 Peer group 11.6 Goodwill as a % of capital Costco 26.0 Peer group 16.9 Pretax ROIC Costco 32.0 Peer group 23.8 Cash tax rate Costco 3.2 Peer group 5.1 Operating margin (EBITA/Revenues) Costco 7.8 Peer group 3.3 Revenues/invested capital (times) Costco 87.0 Peer group 71.4 Cost of sales/ revenues Costco 9.8 Peer group 22.5 Selling and general expenses/revenues Costco 0.0 Peer group 1.1 Other operating expenses/revenues Costco –2.3 Peer group –1.1 Working capital/ revenues Costco 14.6 Peer group 30.6 Fixed assets/ revenues Costco 0.1 Peer group 0.9 Other assets/ revenues2 1 To match economic-profit valuation, invested capital is measured at beginning of year. 2 Other assets, net other liabilities.