Swimsuit discounted 65% on sale for $20.30.

If you want to know how much is the swimsuit:
20.30-0.65*20.3 = 7.11 i think

If you want to know the original price it would be $33.50. To find out the awnser you would multiply the discounted price times the percent of  discount for ($20.30 times 65% (or .65) , then you would add that amount ($13.195 which is rounded to $13.20) to the sale price and that comes out with $33.50 :) Hope that helps