I'm having trouble finding the Weighted-Average Unit Contribution Margin and Break-even Point in Units using the following information: Annual expected sales: Sales of sprinklers are 460,000 units at $26.50, Sales of valves are 1,480,000 units at $11.20, Sales of controllers are 60,000 units at $42.50. Variable manufacturing cost per unit: Sprinklers $13.96, Valves $7.95, Controllers $29.75. Fixed manufacturing overhead cost (total) $760,000. Variable selling and administrative expenses per unit: Sprinklers $1.30, Valves $0.50, Controllers, $3.41, Fixed selling and administrative expenses (total) $1,600,000. Sales mix: Sprinklers 23%, Valves 74%, Controller 3%