The price of a 40-ounce bottle of rum at a U.S. border duty-free store was US$24.95. At

Question:

The price of a 40-ounce bottle of rum at a U.S. border duty-free store was US$24.95. At the same time, the price of a 750-mL bottle of similar quality rum in an Ontario LCBO store was C$26.95. Using the Ontario price as the base, what is the percent saving (on the unit price) by buying rum at the duty-free store? (1 litre = 35.2 fluid ounces)