The WACC of WD-40 Co (WDFC) is 7.4%.
| Range | Selected | |
| Cost of equity | 6.60% - 8.40% | 7.50% |
| Tax rate | 19.80% - 20.00% | 19.90% |
| Cost of debt | 4.00% - 4.50% | 4.25% |
| WACC | 6.5% - 8.2% | 7.4% |
| Category | Low | High |
| Long-term bond rate | 3.9% | 4.4% |
| Equity market risk premium | 4.6% | 5.6% |
| Adjusted beta | 0.6 | 0.63 |
| Additional risk adjustments | 0.0% | 0.5% |
| Cost of equity | 6.60% | 8.40% |
| Tax rate | 19.80% | 20.00% |
| Debt/Equity ratio | 0.03 | 0.03 |
| Cost of debt | 4.00% | 4.50% |
| After-tax WACC | 6.5% | 8.2% |
| Selected WACC | 7.4% | |