Bramble Design Works generated $613,800 in operating income on sales revenue of $3,410,000. The company had $2,520,000 in assets on January 1 and $2,980,000 in assets on December 31. (a-b) (a) Calculate Bramble's margin. (Round answer to O decimal places, e.g. 65%.) Bramble's margin % (b) Calculate Bramble's asset turnover. (Round answer to 2 decimal places, e.g. 0.65.) Bramble's asset turnover times eTextbook and Media Save for Later Attempts: 0 of 3 used Submit Answer (c) Calculate Bramble's return on investment. (Round answer to 2 decimal places, e.g. 5.12%.)