Dresses on sale, checked

There are 240 dresses on sale at Superbalist, Foschini and Woolworths Country Road today, all badged 50% off or more. We have watched the price of 13 of them long enough to judge the badge, and 3 give a real saving of 20% or more against the price the item actually holds. 1 price has dropped in the last week; the cards say which and when.