Saved ir cair Required information 1 Chapter 5: Applying Excel 3 Data 4 Unit sales 5 Selling price per unit 6 Variable expenses per unit 7 Fixed expenses 12,000 units 70 per unit 28 per unit S 378,000 (a) What is net operating income? (Negative amount should be indicated by a minus sign.) (b) By what percentage did the net operating income increase? Prey 2 of 2 Next to search