The WACC of West Pharmaceutical Services Inc (WST) is 7.4%.
| Range | Selected | |
| Cost of equity | 6.10% - 8.70% | 7.40% |
| Tax rate | 17.60% - 17.90% | 17.75% |
| Cost of debt | 4.00% - 4.50% | 4.25% |
| WACC | 6.0% - 8.7% | 7.4% |
| Category | Low | High |
| Long-term bond rate | 3.9% | 4.4% |
| Equity market risk premium | 4.6% | 5.6% |
| Adjusted beta | 0.48 | 0.69 |
| Additional risk adjustments | 0.0% | 0.5% |
| Cost of equity | 6.10% | 8.70% |
| Tax rate | 17.60% | 17.90% |
| Debt/Equity ratio | 0.01 | 0.01 |
| Cost of debt | 4.00% | 4.50% |
| After-tax WACC | 6.0% | 8.7% |
| Selected WACC | 7.4% | |