Can someone help me with the margin of safety in dollars?

4. Confirm your calculations in Requirement 3 above by increasing the unit sales in your worksheet by 20% so that the Data area looks like this: 1 Chapter 5: Applying Excel 2 3 Data 4 Unit sales 5 Selling price per unit 6 Variable expenses per unit 7 Fixed expenses 8 36,000 units $10 per unt $4 per unit $135,000