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Time-weighted return. Related Articles. Time-weighted returns is a measure of the compound rate of return of a portfolio over a stated period of time. It requires a set of sub-period returns to be calculated whenever there is an external cash flow, such as a deposit or withdrawal from the portfolio.
In the formula for WACC, r(E) is the cost of equity i.e. the required rate of return on common stock of the company. It is the minimum rate of return which a company must earn to keep its common stock price from falling.e can also estimate it using MS Excel RATE function. For inclusion in WACC, we need after-tax cost of debt, which is 7.427% [= 10.61% Ã (1 â 30%)]. Having all the necessary inputs, we can plug the values in the WACC formula to get an estimate of 9.82%.