The WACC of W W Grainger Inc (GWW) is 8.8%.
| Range | Selected | |
| Cost of equity | 7.90% - 10.30% | 9.10% |
| Tax rate | 24.50% - 24.90% | 24.70% |
| Cost of debt | 4.10% - 4.50% | 4.30% |
| WACC | 7.7% - 10.0% | 8.8% |
| Category | Low | High |
| Long-term bond rate | 3.9% | 4.4% |
| Equity market risk premium | 4.6% | 5.6% |
| Adjusted beta | 0.87 | 0.98 |
| Additional risk adjustments | 0.0% | 0.5% |
| Cost of equity | 7.90% | 10.30% |
| Tax rate | 24.50% | 24.90% |
| Debt/Equity ratio | 0.05 | 0.05 |
| Cost of debt | 4.10% | 4.50% |
| After-tax WACC | 7.7% | 10.0% |
| Selected WACC | 8.8% | |