Tableau DA 23-2: Exercise, Selection of sales mix LO P3 Tyler Guitars makes acoustic and electric guitars. It is struggling to determine the profitability of each guitar and deciding on which guitar to focus its sales efforts. Tyler currently operates a single 8-hour shift for 22 days per month. The Tableau Dashboard shows data from the recent month. 1. Compute the most profitable sales mix for the company. 2. Determine the month's total contribution margin for the most profitable sales mix. (Leave no cells blank - be certain to enter "0" wherever required.)