Business Solutions sells upscale modular desk units ( 60% of sales) and office chairs ( 40% of sales). Selling prices are $1,350 per desk unit and $600 per chair. Variable costs are $810 per desk unit and $300 per chair. Fixed costs are $177,600. Required: 1. Compute the weighted-average contribution margin. 2. Compute the break-even point in units. 3. Compute the number of units of each product that would be sold at the break-even point. Compute the weighted-average contribution margin. (Round your final answer to the nearest whole number.) Compute the break-even point in units. (Do not round your intermediate calculations and round your final an nearest whole unit.) Compute the number of units of each product that would be sold at the break-even point