A pet food store receives discounts from a supplier of 8% and 14% on a doggie treat which has a list price of $173.17.The store then marks the treat up 12% of cost for overhead and 16% of selling price for operating profit.Later, the store has a weekend special where they sell the treat at "11% above cost".What was their rate of markdown on the treat?Give your answer as a percent rounded to 2 decimal places.