Problem 12 (2013 AMC 8)

At the $2013$ Winnebago County Fair a vendor is offering a "fair special" on sandals. If you buy one pair of sandals at the regular price of \50$, you get a second pair at a$40%$discount, and a third pair at half the regular price. Javier took advantage of the "fair special" to buy three pairs of sandals. What percentage of the$$150$ regular price did he save?