The content originally appeared on: Trinidad and Tobago Newsday News Antoniana Clarke stocks flour at Better Deal Supermarket in Aranguez on Wednesday. - SUREASH CHOLAI There is no hard-and-fast rule for supermarkets to raise the retail price of flour after National Flour Mills (NFM) announced increases in its prices, president of the Supermarket Association (SATT) Rajiv Diptee said Wednesday. NFM in a statement said the wholesale price of flour would be increased between 15-20 per cent and suggested a 19 […]