Weighted Average Cost of Capital Formula By Matthew Frankel, CFP – Updated Jun 8, 2025 at 10:50PM Key Points ...

This post explains how to calculate Weighted Average in Excel with percentages.In a standard arithmetic average where the sum of values is divided by the number of values, each data value is ...

After-tax weighted average cost of capital: The same calculation method as detailed earlier but with the cost of debt modified to reflect the company's tax rate (since interest can be deducted).