furrent Attempt in Progress Waterways has a sales mix of sprinklers, valves, and controllers as follows. Unit variable manufacturing costs: Fibed manufacturing overhead cost (total) $786,000 Unit variable selling and administrative experse for: Fiocd selling and sdministrative expenses (total) $1,477,450 (a) Your answer is correct. Determine the sales mix based on unit sales for each product. 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, es 5.25.) Weighted-Average Unit Contribution Margin