How sensitive is return on capital to the forecast assumptions in case Exhibit $8?$ What independent changes in Carrie Galeotafiore$$s estimates are required to drive the $2002$ return$-$on$-$capital estimate below Home Depot$$s cost$-$of$-$capital estimate of $12\mathrm{.}3\%?$ Look specifically at gross margin, cash operating expenses, receivable turnover, inventory turnover, and P&E turnover. What effect does sales growth have on return of capital? Explain your findings.