please help with the four parts!!

Alyeska Services Company, a division of a major oil company, provides various services to the operators of the North Slope oil field in Alaska. Data concerning the most recent year appear below. Required: 1. Compute the margin. (Round your onswer to 2 decimal places.) 2. Compute the turnover (Round your answer to 2 decimal places.) 3. Compute the return on investment (ROI). (Round your intermediate calculations and final answer to 2 decimal places.) Juniper Design Limited of Manchester, England, provides design services to residential developers. Last year, the company had net operating income of $440,000 on sales of $2,100,000. The company's average operating assets for the year were $2,300,000 and its minimum required rate of return was 16%. Required: Compute the company's residual income for the year. Required informotion [The following information applies to the questions displayed below] CommercialServices com Corporation provides business-to-business services on the Internet. Data conceming the most recent year appear below: The following questions are to be considered independently. Required: 1. Compute the company's retum on investment (ROI). Required information [The following information applies to the questions displayed below] CommercialServices.com Corporation provides business-to-business services on the Internet. Data concerning the most recent year appear below: The following questions are to be considered independently. 3. The Chief Financial Officer of the company believes a more realistic scenario would be a $1,000,000 increase in sales, requiring a $250,000 increase in average operating assets, with a resulting $200,000 increase in net operating income. What would be the company's ROI in this scenario? (Do not round intermediote calculations.)