hapter 7 John Carter admired his wife's success at selling scarves at local cratts shows, 50 he decided to make two types of plant stands to sell at the shows. John makes twig stands out of downed wood from his backyard and the yards of his neighbors, so his variable cost is minimal (wood screws. Tho twig stands are more popular, so Jokn sells four twig stands for eviry one oak atand, glue, and so forth). However, John has to purchase wood to make his oak plant stands. His unit. Susie charges her husband $240 to share her booth at the critt shews (aftar at, the hain paid the entrance fees). How many of each plant stand does vohn need to seat to prices and costs are as follows: breakeven? Wil this affect the number of scarves Susio needs to sed to breakeren? Click the icon to view the data) Explain. Determine how many of each plant stand John needs to sell to breakeves, Begin by computing the weighted-awerage contribution margin per unit. First idenes the formula labeis, then compiese the calculations step by step. Les: Weighled average contrbution margin per unit