Pronghorn Design Works generated $315,840 in operating income on sales revenue of $ 2,632,000. The company had $ 1,860,000 in assets on January 1 and $2,840,000 in assets on December 31. (a-b) (a) Calculate Pronghorn's margin. (Round answer to 0 decimal places, e.g. 65%.) Pronghorn's margin % (b) Calculate Pronghorn's asset turnover. (Round answer to 2 decimal places, e.g. 0.65.) Pronghorn's asset turnover times e Textbook and Media Save for Later Attempts: 0 of 3 used Submit Answer .(c). Calculate Pronghorn's return on investment. (Round answer to 2 decimal places, e.g. 5.12%.) Pronghorn's return on investment %