Selected sales and operating data for three divisions of different structural engineering firms are given as follows Sales Average operating assets Net operating income Minimum required rate of return $6,800,000 $10,800,000 $9,900,000 $1,360,000 2,700,000 $1,980,000 401,200 1,069,200 311,850 23.00% 39 60% 20.00% Required: 1. Compute the return on investment (ROI) for each division using the formula stated in terms of margin and turnover. (Round your answers to 2 decimal places.) Margin Turnover ROI Division A Division C 2 Compute the residual income (loss) for each division (Loss amounts should be indicated by a minus sign. Round your "Required rate of return" to 2 decimal places.) Division A Division B Division C Average operating assets Required rate of return Required operating income DOLL