The WACC of Plantronics Inc (POLY) is 8.5%.
| Range | Selected | |
| Cost of equity | 9.30% - 12.20% | 10.75% |
| Tax rate | 14.70% - 20.20% | 17.45% |
| Cost of debt | 7.00% - 7.20% | 7.10% |
| WACC | 7.8% - 9.2% | 8.5% |
| Category | Low | High |
| Long-term bond rate | 3.9% | 4.4% |
| Equity market risk premium | 4.6% | 5.6% |
| Adjusted beta | 1.18 | 1.32 |
| Additional risk adjustments | 0.0% | 0.5% |
| Cost of equity | 9.30% | 12.20% |
| Tax rate | 14.70% | 20.20% |
| Debt/Equity ratio | 0.86 | 0.86 |
| Cost of debt | 7.00% | 7.20% |
| After-tax WACC | 7.8% | 9.2% |
| Selected WACC | 8.5% | |