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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 $ $890,000$

Net operating income $ $30,260$

Average operating assets $ $100,000$

The following questions are to be considered independently.

$3.$ Assume that the manager of the club is able to reduce expenses by $$3,560$ without any change in sales or average operating assets. What would be the club$$s return on investment $($ROI$)?($Do not round intermediate calculations. Round your answer to $2$ decimal places.$)$