Assuming the tax rate remains constant, what will be the effect on the value-to-EBITA ratio of doubling the following inputs: growth, ROIC, and WACC?" Question 17 options: "The value-to-EBITA ratio will fall, but the amount is uncertain." The value-to-EBITA ratio will decrease by 50 percent. "The value-to-EBITA ratio will increase, but the amount is uncertain." The value-to-EBITA ratio will double.