Application of Percents

Black Friday—the day after Thanksgiving—and all of its crazy sales are just around the corner! Suppose you do all of your gift shopping on that day, choosing to make purchases with the largest discounts, so that all of your gifts are discounted 70% off their regular price. Based on the same total budget you made from before the sales, about how many times as much could you buy in total with this method, compared to buying everything at regular price?