The WACC of Mayville Engineering Company Inc (MEC) is 8.5%.
| Range | Selected | |
| Cost of equity | 8.00% - 10.30% | 9.15% |
| Tax rate | 18.70% - 21.20% | 19.95% |
| Cost of debt | 7.80% - 9.10% | 8.45% |
| WACC | 7.6% - 9.5% | 8.5% |
| Category | Low | High |
| Long-term bond rate | 3.9% | 4.4% |
| Equity market risk premium | 4.6% | 5.6% |
| Adjusted beta | 0.89 | 0.96 |
| Additional risk adjustments | 0.0% | 0.5% |
| Cost of equity | 8.00% | 10.30% |
| Tax rate | 18.70% | 21.20% |
| Debt/Equity ratio | 0.33 | 0.33 |
| Cost of debt | 7.80% | 9.10% |
| After-tax WACC | 7.6% | 9.5% |
| Selected WACC | 8.5% | |