The credit card and a global payment processing companies have been suffering losses for some time now. A well known company recently announced its quarterly results. According to the results, the revenue fell to $52.0 billion from $69.0 billion, a year ago. By what percent did the revenue fall?  Choose the correct choice from the following answers: A) 20.8 B) 24.6 C) 31.8 D) 32.5 E) 33.8

Rationale: "$ 69 - $ 52 = 17 $ ( 17 / 69 ) * 100 = 24.6 % answer : b"
Answer: B