At the opening of a trading day at a certain stock exchange, the price per share of stock K was $6. If the price per share of stock K was $8 at the closing of the day, what was the percent increase in the price per share of stock K for that day?	Select
A) 1.4 %  B) 5.9 %  C) 11.1 %  D) 12.5 %  E) 33.33 %

Rationale: "opening = 6 closing = 8 rise in price = 2 so , percent increase = 2 / 6 * 100 = 33.33 % answer : e"
Answer: E