An investor purchased \(100\) shares of stock \(X\) at \(6 \frac18\) dollars per share and sold them all a year later at

An investor purchased \(100\) shares of stock \(X\) at \(6 \frac18\) dollars per share and sold them all a year later at \(24\) dollars per share. If the investor paid a \(2\) percent brokerage fee on both the total purchase price and the total selling price, which of the following is closest to the investor's percent gain on this investment?

(A) \(92\%\)
(B) \(240\%\)
(C) \(280\%\)
(D) \(300\%\)
(E) \(380\%\)

Answer: C

Source: GMAT Prep