please wrote down formulas too

"I know headquarters wants us to add that new product line," said Fred Holloway, manager of Kristi Products' West Division. "But I want to see the numbers before I make a move. Our division's retum on investment (ROI) has led the company for three years, and I don't want any letdown." Kristi Products is a decentralized wholesaler with four autonomous divisions. The divisions are evaluated on the basis of ROI, with year-end bonuses given to divisional managers who have the highest ROI. Operating results for the company's West Division for the last year are given below: The company had an overall ROI of 18% last year (considering all divisions). The company's West division has an opportunity to add a new product line that would require an investment of $3,000,000. The cost and revenue characteristics of the new product line per year would be as follows: Required: 1. (2 points) Compute the West Division's ROI for last year; also compute the ROI as it would appear if the company duplicated the same performance as last year and also added the new product line. 2. (2 points) If you were in Fred Holloway's position, would you accept or reject the new product line? Explain 3. (2 points) Why do you suppose headquarters is anxious for the West Division to add the new product line? 4. Suppose that the company's minimum required rate of return on operating assets is 15% and that the performance is evaluated using residual income. a. (2 points) Compute the West Division's residual income for the last year; also compute the residual income as it would appear if the company duplicated the same performance as last year and also added the new product line. b. (2 points) Under these circumstances, if you were in Fred Holloway's position would you accept or reject the new product line? Explain