Calculate the controllable margin and the expected return on investment for each proposed alternative. (Round expected return on investment to 2 decimal places, e.g. 1.25%.) The controllable margin The expected return on investment eTextbook and Media Alternative 1 143920 % Alternative 2 % % irn on investment eTextbook and Media Save for Later Last saved 1 second ago. Saved work will be auto-submitted on the due date. Auto- submission can take up to 10 minutes. Attempts: 0 of 3 used Submit