Fill in the table using the following information. Assets required for operation: $4,000 Case A-firm uses only equity financing Case B-firm uses 30% debt with a 10% interest rate and 70% equity Case C-firm uses 50% debt with a 12% interest rate and 50% equity If your answer is zero, enter " 0 ". Round your answers for monetary values to the nearest cent. Round your answers for percentage values to one decimal place. What happens to the rate of return on the stockholders' investment as the amount of debt increases? The rate of return on the stockholders' investment as the amount of debt increases