Answer:
Margin of safety= 5,364 units
Step-by-step explanation:
First, we need to calculate the break-even point in units:
Selling price= 84,000/8,300= $10.12
Unitary variable cost= $2.89
New selling price= 10.12 - 1.1= $9.02
Break-even point in units= fixed costs/ contribution margin per unit
Break-even point in units= 18,000 / (9.02 - 2.89)
Break-even point in units= 2,936 units
Now, the margin of safety:
Margin of safety= (current sales level - break-even point)
Margin of safety= 8,300 - 2,936
Margin of safety= 5,364 units