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

Net operating income

Average operating assets

$$780,000$

$$17,940$

$$100,000$

The following questions are to be considered independently.

$2.$ Assume that the manager of the club is able to increase sales by $$78,000$ and that, as a result, net operating income increases by $$6,084.$ Further assume that this is possible without any increase in 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.$)$

Return on investment $($ROI$)$

$6$