When valuing a company, which typically has a greater impact on DCF evaluation?

• A. A 1% change in discount rate
• B. A 10% change in revenue
• C. A 5% change in expenses
• D. A 0.5% change in growth rate

Answer: (B)

In a discounted cash flow (DCF) evaluation, the ultimate goal is to estimate the present value of future cash flows generated by a company. When assessing the impact of different inputs on this valuation, changes in revenue are particularly significant.

A 10% change in revenue typically has a greater impact because revenue directly drives many aspects of the financial statements, including operating income and net cash flows. Since these cash flows are then discounted back to present value using a discount rate, any variation in revenue can lead to substantial shifts in the projected cash flows and, subsequently, the overall valuation.

In contrast, while changes in expenses, discount rates, or growth rates can also affect the valuation, their direct effect on cash flows is often less pronounced than that of revenue adjustments. For instance, a 1% change in the discount rate impacts the present value but may not reflect a substantial variance in the expected cash flows compared to a 10% fluctuation in revenue. Similarly, while a shift in growth rates does influence long-term projections, a modest percentage change like 0.5% typically does not override the direct value derived from revenue figures in the DCF context.

Overall, revenue is foundational to the DCF model, as it affects not just the top