1- Fitness Fanatics is a regional chain of health clubs. The managers of the clubs, who have authority to make investments as needed, are evaluated based largely on return on investment (ROI). The company's Springfield Club reported the following results for the past year:

Sales	$	810,000
Net operating income	$	21,060
Average operating assets	$	100,000

The following questions are to be considered independently.

2. Assume that the manager of the club is able to increase sales by $81,000 and that, as a result, net operating income increases by $6,561. Further assume that this is possible without any increase in average operating assets. What would be the clubs return on investment (ROI)? (Do not round intermediate calculations. Round your answer to 2 decimal places.)

3. Assume that the manager of the club is able to reduce expenses by $3,240 without any change in sales or average operating assets. What would be the clubs return on investment (ROI)? (Do not round intermediate calculations. Round your answer to 2 decimal places.)

4. Assume that the manager of the club is able to reduce average operating assets by $40,000 without any change in sales or net operating income. What would be the clubs return on investment (ROI)?

2-CommercialServices.com Corporation provides business-to-business services on the Internet. Data concerning the most recent year appear below:

Sales	$	4,740,000
Net operating income	$	189,600
Average operating assets	$	790,000

The following questions are to be considered independently.

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3. The Chief Financial Officer of the company believes a more realistic scenario would be a $1,200,000 increase in sales, requiring a $695,000 increase in average operating assets, with a resulting $107,400 increase in net operating income. What would be the companys ROI in this scenario? (Do not round intermediate calculations. Round your answer to 2 decimal places.)