During a sale, the price of a pair of shoes is marked down 15% from the regular price. After the sale ends, the price goes back to the original price. What is the percent of increase to the nearest percent from the sale price back to the regular price for the shoes?	Choose the most appropriate option: A) 9% B) 10% C) 11% D) 18% E) 90%
Assume the price = 100   Price during sale = 85   Price after sale = 100   Percent increase = 15/85*100 = 18% approx.   Correct Option: 18%
<result>D</result>
During a sale, the price of a pair of shoes is marked down 15% from the regular price. After the sale ends, the price goes back to the original price. What is the percent of increase to the nearest percent from the sale price back to the regular price for the shoes?