You buy 50 shares of a stock on October 1 @ $72.30 per share. You sold those same shares on December 15 for $83.13 per share. What was your percentage gained on the transaction?

13%

(multiply 72.30 x 50 and subtract that from 83.13 x 50. Take the outcome from 83.13 x 50 and subtract the outcome from the first answer you got and youwill get approximately. 13 which converts to 13%)

around %114.98