Just need help with question 4 part a (Net operating income (loss))

2. Change all of the numbers in the data area of your worksheet so that it looks like this: 1 Chapter 5: Applying Excel 2 3 Data 4 Unit sales 5 Selling price per unit 6 Variable expenses per unit 30,000 units $10 per unit 7 Fixed expenses 90,000 If your formulas are correct, you should get the correct answers to the following questions. (a) What is the break-even in dollar sales? Break-even in dollar sales $ 150,000 (b) What is the margin of safety percentage? Margin of safety 501% ercentage