The China's Best Restaurant Chain Had a 12% Return on a $60,000

Multiple Choice

The China's Best Restaurant chain had a 12% return on a $60,000 investment in new ovens. The investment resulted in increased sales, and the resultant increase in income amounted to 4% of the increase in sales. The amount of the increase in sales must have been

A) $7,200.
B) $60,000.
C) $180,000.
D) $500,000.