The WACC of Mckesson Corp (MCK) is 6.4%.
| Range | Selected | |
| Cost of equity | 5.40% - 7.90% | 6.65% |
| Tax rate | 15.50% - 17.80% | 16.65% |
| Cost of debt | 4.00% - 4.50% | 4.25% |
| WACC | 5.3% - 7.6% | 6.4% |
| Category | Low | High |
| Long-term bond rate | 3.9% | 4.4% |
| Equity market risk premium | 4.6% | 5.6% |
| Adjusted beta | 0.34 | 0.54 |
| Additional risk adjustments | 0.0% | 0.5% |
| Cost of equity | 5.40% | 7.90% |
| Tax rate | 15.50% | 17.80% |
| Debt/Equity ratio | 0.08 | 0.08 |
| Cost of debt | 4.00% | 4.50% |
| After-tax WACC | 5.3% | 7.6% |
| Selected WACC | 6.4% | |