Step Up Ladders Company provides the following financial information: Income from operations Interest expense Gains/(losses) on sale of equipment Net income Total assets at Jan. 1 $200,000 50,000 3,000 147,000 2,900,000 3,300,000 Total assets at Dec .31. Calculate return on investment based on the information given above. (Round your answer to two decimal places.) A. 6.45% B. 4.74% C. 6.90% OD. 6.06%