Which factor is not needed to use the band-of-investment method of calculating the discount rate?

The band-of-investment method is used to estimate the discount rate for income-producing properties by considering the weighted average cost of capital, which typically includes factors like the ratio of equity to debt and the corresponding costs associated with each. This method integrates several components to arrive at a usable discount rate for valuation purposes.

Reversion refers to the concept of property value at the end of a forecast period, which is significant in determining the overall profitability and potential returns from the investment. However, when calculating the discount rate specifically through the band-of-investment approach, reversion itself is not an essential component. Instead, the method focuses primarily on the current loan amount, market interest rates, and the property’s income-producing potential, since these elements directly influence the investment's cost of capital.

In contrast, the other factors, such as the loan amount, market interest rates, and property income potential, are crucial for determining the expected returns and the associated costs of both equity and debt used in financing the property. Thus, reversion is not needed in the specific context of calculating the discount rate using the band-of-investment method, making it the correct choice in this scenario.