Retail Sales and Wholesale Sales are the only divisions of Trigon Company. Operating Income $ 6,200,000 -retail $ 2,700,000 -wholesale Operating Assets $36,200,000 -retail $16,200,000 -wholesale The company has $1,200,000 in operating assets that are not assigned to either of the divisions and $220,000 in corporate expenses that are not reflected in the information above. Based on this information, what is the ROI for the company as a whole?