T-shirts & golfers on sale, checked

There are 310 t-shirts & golfers on sale at Superbalist, Woolworths Trenery and Woolworths today, all badged 50% off or more. We have watched the price of 38 of them long enough to judge the badge, and 11 give a real saving of 20% or more against the price the item actually holds. 13 prices have dropped in the last week; the cards say which and when.