A trader bought a car at 30% discount on its original price. He sold it at a 80% increase on the price he bought it. What percent of profit did he make on the original price? Choose the correct answer
A) 18 %
B) 26 %
C) 12 %
D) 32 %
E) 15 %

Rationale: "original price = 100 cp = 70 s = 70 * ( 180 / 100 ) = 126 100 - 126 = 26 % answer : b"
Answer: B