Exercise 19-6 Yard Tools manufactures lawnmowers, weed-trimmers, and chainsaws. Its sales mix and unit contribution margin are as follows Unit Contribution Margin Sales Mix 20 % 50 % 30% 531 520 $36 Weed-trimmers Chainsaws Yard Tools has fixed costs of $3,915,000. Compute the number of units of each product that Yard Tools must sell in order to break even under this product mix. (Use the Weighted-Average Unit Contribution Margin Ratio rounded to 2 decimal places e.g. 0.25 and round final answers to 0 decimal places, e.g. 2,510.) Lawnmowers Weed-trimmers units units units