The WACC of Donaldson Company Inc (DCI) is 9.0%.
| Range | Selected | |
| Cost of equity | 8.10% - 10.60% | 9.35% |
| Tax rate | 23.40% - 23.70% | 23.55% |
| Cost of debt | 4.00% - 4.50% | 4.25% |
| WACC | 7.8% - 10.2% | 9.0% |
| Category | Low | High |
| Long-term bond rate | 3.9% | 4.4% |
| Equity market risk premium | 4.6% | 5.6% |
| Adjusted beta | 0.92 | 1.03 |
| Additional risk adjustments | 0.0% | 0.5% |
| Cost of equity | 8.10% | 10.60% |
| Tax rate | 23.40% | 23.70% |
| Debt/Equity ratio | 0.06 | 0.06 |
| Cost of debt | 4.00% | 4.50% |
| After-tax WACC | 7.8% | 10.2% |
| Selected WACC | 9.0% | |