Leading US-based T-shirt, golf shirt and tank top manufacturer, Delta Apparel Inc, on Thursday announced a 7.7 per cent fall in second quarter sales to $24.3 million from the year ago period. In a statement, the firm said the fall was the result of a 4.2 per cent decrease in unit volume and a 3.7 per cent drop in average selling prices from the prior year quarter, while sales for the first six months of fiscal year 2002 were $55.4m, down $1.7m, or 2.9 per cent, from the first six months of last year.