Final answer:
To calculate the weighted average contribution margin per unit, subtract the variable cost per unit from the unit selling price. Multiply the contribution margin per unit for each product by its sales mix percentage and sum the results.
Step-by-step explanation:
To calculate the weighted average contribution margin per unit, we need to first calculate the contribution margin per unit for each product. The contribution margin per unit is calculated by subtracting the variable cost per unit from the unit selling price. For the cat beds, the contribution margin per unit is $44.00 - $24.00 = $20.00. For the scratching posts, the contribution margin per unit is $100.00 - $30.00 = $70.00. Next, we calculate the weighted average contribution margin per unit by multiplying the contribution margin per unit for each product by its sales mix percentage and summing the results. The weighted average contribution margin per unit is calculated as: (0.60 * $20.00) + (0.40 * $70.00) = $12.00 + $28.00 = $40.00.