A dishonest butcher priced his meat so that meat advertised at \$3.79 per kg was actually sold for \$4.00 per kg. He sold 1800 kg of meat before being caught and fined \$500. By how much was he ahead or behind where he would have been had he not cheated?
Answer Choices
A. \$478 loss
B. \$122 loss
C. Breaks even
D. \$122 gain
E. \$478 gain