The WACC of W W Grainger Inc (GWW) is 9.8%.
| Range | Selected | |
| Cost of equity | 8.50% - 11.60% | 10.05% |
| Tax rate | 24.50% - 24.90% | 24.70% |
| Cost of debt | 4.10% - 4.50% | 4.30% |
| WACC | 8.3% - 11.2% | 9.8% |
| Category | Low | High |
| Long-term bond rate | 3.9% | 4.4% |
| Equity market risk premium | 4.6% | 5.6% |
| Adjusted beta | 1.01 | 1.2 |
| Additional risk adjustments | 0.0% | 0.5% |
| Cost of equity | 8.50% | 11.60% |
| Tax rate | 24.50% | 24.90% |
| Debt/Equity ratio | 0.04 | 0.04 |
| Cost of debt | 4.10% | 4.50% |
| After-tax WACC | 8.3% | 11.2% |
| Selected WACC | 9.8% | |