RENSTRUCTOR PULA GOREN 5 Waterways has a sales mix of sprinders, valves, and controllers as follows. Annual expected sales Sale of sprinklers 485,415 units at $26.00 Sale of valves 1,561,770 units at $11.00 Sale of controllers 63,315 units at $42.00 Variable manufacturing cost per unit Sprinklers $14.00 Valves $8.00 Controllers $30.00 Fixed manufacturing overhead cost (total) $746,000 Variable selling and administrative expenses per unit: Sprinklers $1.00 Valves $1.00 Controllers $3.00 Fixed selling and administrative expenses (total) $1,663,212 (b) Using the annual expected sales for these products, determine the weighted average unit contribution margin for these three products. (Round answer to two decimal places, ...25.) Weighted Average Unit Contribution Margin