Bramble Design Works generated $413,100 in operating income on sales revenue of $2,295,000. The company had $1,650,000 in assets on January 1 and $2,850,000 in assets on December 31. (a-b) (a) Calculate Bramble's margin. (Round answer to O decimal places, eg. 65%) Bramble's margin (b) Calculate Bramble's asset turnover (Round answer to 2 decimal places, es. 0.65) Brambles asset turnover times Calculate Bramble's return on investment. (Round answer to 2 decimal places, e.g. 5.12%) Bramble's return on investment %