Rovinsky Corporation, a company that produces and sells a single product, has provided its contribution format income statement for November. Sales (6,300 units) $ 415,800 Variable expenses 289,800 Contribution margin 126,000 Fixed expenses 103,500 Net operating income $ 22,500 If the company sells 6,200 units, its net operating income should be closest to: (Do not round intermediate calculations)
a. $21,979
b. $20,500
c. $22,500
d. $18,000