X-Beams Inc. owned 70% of the voting common stock of Kent Corp. During 2006, Kent made several sales of inventory to X-Beams. The total selling price was $180,000 and the cost was $100,000. At the end of the year, 20% of the goods were still in X-Beams' inventory. Kent's reported net income was $300,000. What was the noncontrolling interest in Kent's net income?
a) $90,000
b) $88,560
c) $85,200
d) $77,700