Margin, Turnover, Return on Investment, Average Operating Assets

Park Company provided the following income statement for last year:

Sales	$80,000
Less: Variable expenses	55,000
Contribution margin	$25,000
Less: Fixed expenses	19,800
Operating income	$5,200

At the beginning of last year, Park had $38,660 in operating assets. At the end of the year, Park had $41,340 in operating assets.

Required:

Compute ROI. Do not round interim calculations, but do round your final answer to two decimal places. If required, use a minus sign to indicate a negative ROI. ROI = %