Waterways has a sales mix of sprinklers, valves, and controllers as follows. Annual expected sales: Sale of sprinklers 464,090 units at $27.00 Sale of valves 1,582,125 units at $11.00 Sale of controllers 63,285 units at $43.00 Unit variable manufacturing costs: Sprinklers Valves Controllers Fixed manufacturing overhead cost (total) $14.00 $8.00 $30.00 $805,000 Unit variable selling and administrative expense for: Sprinklers Valves Controllers Fixed selling and administrative expenses (total) $1.00 $1.00 $3.00 $1,689,392 Determine the sales mix based on unit sales for each product. (b) Sales mix Sprinklers Valves 22 % Controllers 75 % 3 % Attempts: unlimited Using the annual expected sales for these products, determine the weighted-average unit contribution margin for these three products. (Round answer to 2 decimal places, e.g. 5.25.) Weighted-Average Unit Contribution Margin $