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: A B C 1 Chapter 5: Applying Excel 2 3 Data 4 Unit sales 72,000 units 5 Selling price per unit $ 6 Variable expenses per unit SASA $ 10 per unit 6 per unit 7 Fixed expenses $ 120,000