Alpha is popular loungewear that prides itself on its versatility. Last year, its net sales were $1,750,000 with cost of goods of $390,000. The company's operating expenses totaled $960,000. Calculate the company's net operating profit margin percentage.
A) 77.1 percent
B) 22.2 percent
C) 22.9 percent
D) 12.5 percent
E) 19.3 percent