The WACC of WD-40 Co (WDFC) is 7.1%.
| Range | Selected | |
| Cost of equity | 6.30% - 8.00% | 7.15% |
| Tax rate | 19.80% - 20.00% | 19.90% |
| Cost of debt | 4.00% - 4.60% | 4.30% |
| WACC | 6.2% - 7.9% | 7.1% |
| Category | Low | High |
| Long-term bond rate | 3.9% | 4.4% |
| Equity market risk premium | 4.6% | 5.6% |
| Adjusted beta | 0.53 | 0.56 |
| Additional risk adjustments | 0.0% | 0.5% |
| Cost of equity | 6.30% | 8.00% |
| Tax rate | 19.80% | 20.00% |
| Debt/Equity ratio | 0.04 | 0.04 |
| Cost of debt | 4.00% | 4.60% |
| After-tax WACC | 6.2% | 7.9% |
| Selected WACC | 7.1% | |