August 28, 2013 - 7:18AM Stocks to watch on the Australian stock exchange on Wednesday, Aug 28: BBG - BILLABONG - down three cents, or 5.31 per cent, at 53.5 cents BPT - BEACH ENERGY - up three cents, or 2.21 per cent, at $1.385 Flight Centre is overhauling its shops, staff and services in a bid to keep up its run of record profits. NBL - NONI B - down two cents, or 2.99 per cent, at 65 cents Fashion retailer Noni B's sales in the new financial year have been hit by nervous shoppers amid economic uncertainty ahead of the federal election. SVW - SEVEN GROUP - down 58 cents, or 7.53 per cent, at $7.12 WesTrac owner Seven Group expects its earnings to fall by more than a third in the year ahead as a downturn in the mining sector causes a slump in machinery sales. WHC - WHITEHAVEN COAL - down two cents, or 0.99 per cent, at $2.00