Using the following data, estimate the new Return on Investment if there is a $6\%$ increase in sales $-$ with average operating assets as the base.

Sales $$2,147,781$

Contribution margin $46\%$

Controllable fixed costs $356,431$

Average operating assets $$4,173,531$

Round to two decimal places. Be sure to enter the answer as a percentage but do not include the $\%$ sign.